Wurth Elektronik Proteus-E User manual

PROTEUS-E REFERENCE MANUAL
2612011024000
VERSION 0.3
NOVEMBER 22, 2021

***************
MUST READ
Check for firmware updates
Before using the product make sure you use the most recent firmware version, data sheet
and user manual. This is especially important for Wireless Connectivity products that were
not purchased directly from Würth Elektronik eiSos. A firmware update on these respective
products may be required.
We strongly recommend to include in the customer system design, the possibility for a
firmware update of the product.

Revision history
Manual
version
FW
version
HW
version Notes Date
1.0 1.0.0 1.0 • Initial release December
2021
?For firmware history see chapter Firmware history
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Abbreviations and abstract
Abbreviation Name Description
BTMAC Bluetooth®conform MAC address of the module used
on the RF-interface.
CS Checksum Byte wise XOR combination of the preceding fields.
DSSS Direct sequence
spread spectrum Technique to spread a message on the radio
DTM Direct test mode Mode to test Bluetooth®specific RF settings.
EV (Board) Evaluation (Board) Proteus-e populated on motherboard with USB
interface for test and evaluation purpose.
FEC Forward error
correction
Technique to correct received erroneous radio
messages
GAP Generic Access
Profile
The GAP provides a basic level of functionality that all
Bluetooth®devices must implement.
I/O Input/output Pinout description.
LESC Low energy
secure connection
Elliptic curve encryption method for Bluetooth®LE
encryption and authentication
LPM Low power mode Mode for efficient power consumption.
MAC MAC address of the module.
MPS Maximum payload
size
The maximum size of the payload, that can be
transmitted/received using one Bluetooth®LE
transaction.
MTU Maximum
transmission unit Maximum packet size of the Bluetooth®connection.
Payload The intended message in a frame / package.
RF Radio frequency Describes wireless transmission.
RSSI Receive Signal
Strength Indicator
The RSSI indicates the strength of the RF signal. Its
value is always printed in two’s complement notation.
Soft device Operating system used by the nRF52 chip.
SPI Serial Peripheral
Interface Allows the serial communication with the module.
UART
Universal
Asynchronous
Receiver
Transmitter
Allows the serial communication with the module.
User settings
Settings to configure the module. Any relation to a
specific entry in the user settings is marked in a
special font and can be found in chapter 8 .
[HEX] 0xhh Hexadecimal
All numbers beginning with 0x are hexadecimal
numbers. All other numbers are decimal, unless
stated otherwise.
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Contents
1. Introduction 9
1.1. Operational description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.1. Keyfeatures............................... 10
1.1.2. Connectivity............................... 10
1.2. Blockdiagram................................... 11
1.3. Orderinginformation............................... 11
2. Electrical specifications 12
2.1. Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . 12
2.2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3. Powerconsumption................................ 13
2.3.1. Static................................... 13
2.3.2. Dynamic................................. 15
2.4. Radiocharacteristics............................... 16
2.5. Pincharacteristics ................................ 17
3. Pinout 18
4. Quick start 21
4.1. Minimal pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2. Antennaconnection ............................... 23
4.2.1. On-board PCB antenna . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2.2. Externalantenna ............................ 23
4.3. Powerup ..................................... 24
4.4. Quickstartexample................................ 25
5. Functional description 27
5.1. Operationmodes................................. 27
5.2. Radiomodulestates............................... 27
5.3. State indication using the LED pins . . . . . . . . . . . . . . . . . . . . . . . 29
5.4. Sleepmode.................................... 29
5.5. Identification of a Proteus-e device on the radio . . . . . . . . . . . . . . . . 29
5.6. Connection based data transmission . . . . . . . . . . . . . . . . . . . . . . 30
5.7. Advertising of custom data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.7.1. Restrictions ............................... 32
5.7.2. Application of custom advertising and scan response data . . . . . 32
5.8. Energy-efficient distance estimation solutions . . . . . . . . . . . . . . . . . 32
5.9. Configure the module for low power consumption . . . . . . . . . . . . . . . 33
5.10. Start the direct test mode (DTM) . . . . . . . . . . . . . . . . . . . . . . . . 33
5.11. Usingthe2MBitphy............................... 35
6. Host connection 36
6.1. Serial interface: UART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.1.1. Resetbehaviour............................. 36
7. The command interface 37
7.1. Setupconnections ................................ 39
7.1.1. CMD_CONNECT_IND . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.1.2. CMD_SECURITY_IND . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.1.3. CMD_CHANNELOPEN_RSP . . . . . . . . . . . . . . . . . . . . . 39
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7.1.4. CMD_DISCONNECT_REQ . . . . . . . . . . . . . . . . . . . . . . 39
7.1.5. CMD_DISCONNECT_IND . . . . . . . . . . . . . . . . . . . . . . . 40
7.1.6. CMD_PHYUPDATE_REQ . . . . . . . . . . . . . . . . . . . . . . . 40
7.1.7. CMD_PHYUPDATE_IND . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1.8. CMD_GETBONDS_REQ . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1.8.1. Example1.............................. 42
7.1.9. CMD_DELETEBONDS_REQ . . . . . . . . . . . . . . . . . . . . . 42
7.1.9.1. Example1.............................. 43
7.1.9.2. Example2.............................. 43
7.1.10. CMD_ALLOWUNBONDEDCONNECTIONS_REQ . . . . . . . . . . 43
7.2. Transmit and receive data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.2.1. CMD_DATA_REQ............................ 45
7.2.2. CMD_TXCOMPLETE_RSP . . . . . . . . . . . . . . . . . . . . . . 45
7.2.3. CMD_DATA_IND ............................ 45
7.3. Configuring the module and modifying the device settings . . . . . . . . . . 47
7.3.1. CMD_SET_REQ ............................ 47
7.3.1.1. Example1.............................. 48
7.3.1.2. Example2.............................. 48
7.3.2. CMD_GET_REQ ............................ 49
7.3.2.1. Example1.............................. 49
7.4. Manage the device state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.4.1. CMD_GETSTATE_REQ . . . . . . . . . . . . . . . . . . . . . . . . 50
7.4.1.1. Example1.............................. 50
7.4.2. CMD_RESET_REQ........................... 51
7.4.3. CMD_SLEEP_REQ........................... 51
7.4.4. CMD_SLEEP_IND ........................... 52
7.4.5. CMD_FACTORYRESET_REQ . . . . . . . . . . . . . . . . . . . . . 52
7.4.6. CMD_UARTDISABLE_REQ . . . . . . . . . . . . . . . . . . . . . . 53
7.4.7. CMD_UARTENABLE_IND . . . . . . . . . . . . . . . . . . . . . . . 53
7.5. Run the Bluetooth test modes . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7.5.1. CMD_DTMSTART_REQ . . . . . . . . . . . . . . . . . . . . . . . . 55
7.5.2. CMD_DTM_REQ ............................ 55
7.5.2.1. Example: Transmission, 16 times 0x0F, channel 0 . . . . . . . 57
7.5.2.2. Example: Receiver, channel 0 . . . . . . . . . . . . . . . . . . . 58
7.5.2.3. Example: Transmission, carrier test, channel 0 . . . . . . . . . 58
7.5.2.4. Example: Set TX power to -4 dBm . . . . . . . . . . . . . . . . 59
7.5.2.5. Example: Set PHY to 2MBit mode . . . . . . . . . . . . . . . . 59
7.6. Switching GPIOs by remote control . . . . . . . . . . . . . . . . . . . . . . . 60
7.6.1. CMD_GPIO_LOCAL_WRITECONFIG_REQ . . . . . . . . . . . . . 60
7.6.1.1. Example: Configure two GPIOs to output high . . . . . . . . . . 61
7.6.2. CMD_GPIO_LOCAL_READCONFIG_REQ . . . . . . . . . . . . . 62
7.6.2.1. Example: Read the current GPIO configuration . . . . . . . . . 63
7.6.3. CMD_GPIO_REMOTE_WRITECONFIG_REQ . . . . . . . . . . . . 64
7.6.3.1. Example: Configure two GPIOs of the connected remote device
tooutputhigh............................ 65
7.6.4. CMD_GPIO_REMOTE_READCONFIG_REQ . . . . . . . . . . . . 66
7.6.4.1. Example: Read the current GPIO configuration of the connect-
edremotedevice.......................... 67
7.6.5. CMD_GPIO_REMOTE_WRITE_REQ . . . . . . . . . . . . . . . . . 68
7.6.5.1. Example: Set a remote output GPIO to low . . . . . . . . . . . 69
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7.6.6. CMD_GPIO_REMOTE_READ_REQ . . . . . . . . . . . . . . . . . 70
7.6.6.1. Example: Read the values of remote GPIOs . . . . . . . . . . . 71
7.6.7. CMD_GPIO_LOCAL_WRITE_REQ . . . . . . . . . . . . . . . . . . 72
7.6.7.1. Example: Set a local output GPIO to low . . . . . . . . . . . . . 73
7.6.8. CMD_GPIO_LOCAL_READ_REQ . . . . . . . . . . . . . . . . . . 74
7.6.8.1. Example: Read the values of local GPIOs . . . . . . . . . . . . 75
7.6.9. CMD_GPIO_REMOTE_WRITECONFIG_IND . . . . . . . . . . . . 76
7.6.9.1. Example: Two GPIOs have been configured by the connected
remote device to output high . . . . . . . . . . . . . . . . . . . 76
7.6.10. CMD_GPIO_REMOTE_WRITE_IND . . . . . . . . . . . . . . . . . 77
7.6.10.1. Example: GPIOs have been written via remote access . . . . . 77
7.6.11. CMD_GPIO_LOCAL_WRITE_IND . . . . . . . . . . . . . . . . . . 78
7.6.11.1. Example: GPIOs of the remote device have been written by its
localhost .............................. 78
7.7. Othermessages ................................. 79
7.7.1. CMD_ERROR_IND........................... 79
7.8. Messageoverview ................................ 80
8. UserSettings - Module configuration values 84
8.1. FS_DeviceInfo: Read the chip type and OS version . . . . . . . . . . . . . . 84
8.1.1. Example1................................ 85
8.2. FS_FWVersion: Read the firmware version . . . . . . . . . . . . . . . . . . 86
8.2.1. Example1................................ 86
8.3. FS_MAC: Read the MAC address . . . . . . . . . . . . . . . . . . . . . . . . 87
8.3.1. Example1................................ 87
8.4. FS_BTMAC: Read the Bluetooth conform MAC address . . . . . . . . . . . 88
8.4.1. Example1................................ 88
8.5. FS_SerialNumber: Read the serial number of the module . . . . . . . . . . 89
8.5.1. Example1................................ 89
8.6. RF_DeviceName: Modify the device name . . . . . . . . . . . . . . . . . . . 90
8.6.1. Example1................................ 90
8.6.2. Example2................................ 90
8.7. RF_StaticPasskey: Modify the static passkey . . . . . . . . . . . . . . . . . 92
8.7.1. Example1................................ 92
8.7.2. Example2................................ 92
8.8. RF_SecFlags: Modify the security settings . . . . . . . . . . . . . . . . . . . 93
8.8.1. Example1................................ 94
8.8.2. Example2................................ 94
8.9. RF_ScanResponseData: Modify the content of the scan response packet . 95
8.9.1. Example1................................ 95
8.9.2. Example2................................ 95
8.10. RF_AdvertisingData: Modify the content of the advertising packet . . . . . . 97
8.10.1.Example1................................ 97
8.10.2.Example2................................ 97
8.11. RF_AdvertisingTimeout: Modify the advertising timeout . . . . . . . . . . . 99
8.11.1.Example1................................ 99
8.11.2.Example2................................ 99
8.12. RF_AdvertisingInterval: Modify the advertising interval . . . . . . . . . . . . 100
8.12.1.Example1................................ 100
8.12.2.Example2................................ 100
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8.13. RF_ConnectionInterval: Modify the connection interval . . . . . . . . . . . . 101
8.13.1.Example1................................ 101
8.13.2.Example2................................ 102
8.14. RF_TXPower: Modify the output power . . . . . . . . . . . . . . . . . . . . . 103
8.14.1.Example1................................ 103
8.14.2.Example2................................ 103
8.15. RF_SPPBaseUUID: Configure the SPP base UUID . . . . . . . . . . . . . . 105
8.15.1.Example1................................ 105
8.15.2.Example2................................ 105
8.16. RF_SPPServiceUUID: Configure the SPP service UUID . . . . . . . . . . . 106
8.16.1.Example1................................ 106
8.16.2.Example2................................ 106
8.17. RF_SPPRXUUID: Configure the SPP RX UUID . . . . . . . . . . . . . . . . 107
8.17.1.Example1................................ 107
8.17.2.Example2................................ 107
8.18. RF_SPPTXUUID: Configure the SPP TX UUID . . . . . . . . . . . . . . . . 108
8.18.1.Example1................................ 108
8.18.2.Example2................................ 108
8.19. RF_Appearance: Configure the appearance of the device . . . . . . . . . . 109
8.19.1.Example1................................ 109
8.19.2.Example2................................ 109
8.20. UART_ConfigIndex: Modify the UART speed . . . . . . . . . . . . . . . . . 110
8.20.1.Example1................................ 112
8.20.2.Example2................................ 112
8.21. CFG_Flags: Configure the module . . . . . . . . . . . . . . . . . . . . . . . 113
8.21.1.Example1................................ 113
8.21.2.Example2................................ 113
9. Timing parameters 117
9.1. Resetandsleep ................................. 117
9.2. Bluetooth LE timing parameters . . . . . . . . . . . . . . . . . . . . . . . . . 117
9.3. Connection establishment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
9.4. Connection based data transmission . . . . . . . . . . . . . . . . . . . . . . 118
9.4.1. Maximum data throughput . . . . . . . . . . . . . . . . . . . . . . . 118
10.Transparent mode 120
10.1. Reasons to use the transparent mode . . . . . . . . . . . . . . . . . . . . . 120
10.2. How to use the transparent mode . . . . . . . . . . . . . . . . . . . . . . . . 120
10.3. Moreinformation ................................. 121
10.3.1.UART................................... 121
11.Remote GPIO control 123
11.1. Supported GPIO_IDs for remote and local control . . . . . . . . . . . . . . . 128
12.Customizing the Proteus-e 129
12.1. UUID........................................ 129
12.2. Appearance.................................... 129
13.Custom firmware 130
13.1. Custom configuration of standard firmware . . . . . . . . . . . . . . . . . . 130
13.2. Customer specific firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
13.3. Customerfirmware................................ 130
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13.4. Contact for firmware requests . . . . . . . . . . . . . . . . . . . . . . . . . . 131
14.Firmware updates 132
14.1. Firmware flashing using the production interface . . . . . . . . . . . . . . . 132
15.Firmware history 133
16.Design in guide 134
16.1. Advice for schematic and layout . . . . . . . . . . . . . . . . . . . . . . . . . 134
16.2. Dimensioning of the micro strip antenna line . . . . . . . . . . . . . . . . . . 136
16.3. Antennasolutions ................................ 137
16.3.1.Wireantenna .............................. 137
16.3.2.Chipantenna .............................. 138
16.3.3.PCBantenna .............................. 138
16.3.4. Antennas provided by Würth Elektronik eiSos . . . . . . . . . . . . 139
16.3.4.1. 2600130021 - Himalia - 2.4 GHz dipole antenna . . . . . . . . 139
17.Reference design 140
17.1. EV-Board ..................................... 141
17.1.1.Schematic................................ 141
17.1.2.Layout .................................. 142
17.2. Tracedesign ................................... 143
17.2.1. Simple short using internal antenna . . . . . . . . . . . . . . . . . . 144
17.2.2. 22 pF coupling capacitor using internal antenna . . . . . . . . . . . 145
17.2.3. 22 pF coupling capacitor using external antenna . . . . . . . . . . . 146
17.3. Antennafinetuning................................ 147
18.Manufacturing information 148
18.1. Moisture sensitivity level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
18.2. Soldering ..................................... 148
18.2.1. Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
18.2.2.Cleaning................................. 149
18.2.3. Potting and coating . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
18.2.4.Othernotations ............................. 150
18.3. ESDhandling................................... 150
18.4. Safety recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
19.Physical specifications 152
19.1. Dimensions.................................... 152
19.2. Weight....................................... 152
19.3. Lightsensitivity .................................. 152
19.4. Moduledrawing.................................. 153
19.5. FootprintWE-FP-4+ ............................... 154
19.6. Antennafreearea ................................ 154
20.Marking 155
20.1. Lotnumber .................................... 155
20.2. General labeling information . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
21.Information for explosion protection 157
22.References 158
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23.Bluetooth SIG listing/qualification 159
24.Regulatory compliance information 160
24.1. ImportantnoticeEU ............................... 160
24.2. Important notice FCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
24.3. Conformity assessment of the final product . . . . . . . . . . . . . . . . . . 160
24.4. Exemptionclause................................. 160
24.5. FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
24.6. IC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
24.7. FCC and IC requirements to OEM integrators . . . . . . . . . . . . . . . . . 161
24.7.1. OEM requirements: . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
24.7.2. Pre-certified antennas . . . . . . . . . . . . . . . . . . . . . . . . . 162
24.7.3. Change in ID / Multiple listing . . . . . . . . . . . . . . . . . . . . . 163
25.Important notes 164
25.1. General customer responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 164
25.2. Customer responsibility related to specific, in particular safety-relevant ap-
plications ..................................... 164
25.3. Best care and attention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
25.4. Customer support for product specifications . . . . . . . . . . . . . . . . . . 164
25.5. Product improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
25.6. Productlifecycle ................................. 165
25.7. Propertyrights .................................. 165
25.8. General terms and conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 165
26.Legal notice 166
26.1. Exclusion of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
26.2. Suitability in customer applications . . . . . . . . . . . . . . . . . . . . . . . 166
26.3. Trademarks .................................... 166
26.4. Usagerestriction ................................. 166
27.License terms 168
27.1. Limitedlicense .................................. 168
27.2. Usage and obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
27.3. Ownership..................................... 169
27.4. Firmwareupdate(s)................................ 169
27.5. Disclaimer of warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
27.6. Limitation of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
27.7. Applicable law and jurisdiction . . . . . . . . . . . . . . . . . . . . . . . . . . 170
27.8. Severabilityclause ................................ 170
27.9. Miscellaneous................................... 170
A. Additional CRC8 Information 173
A.1. Example CRC8 Implementation . . . . . . . . . . . . . . . . . . . . . . . . . 173
A.2. CRC8TestVectors................................ 173
B. Example codes for host integration 174
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1. Introduction
1.1. Operational description
The Proteus-e is a radio module for wireless communication between devices such as con-
trol systems, remote controls, sensors etc. On the basis of Bluetooth®LE 5.1, it offers a fast
and secure data transmission of data packages between two parties (point to point topology).
The Bluetooth®LE standard itself offers very high configurability, making the module suitable
for a wide range of applications. For example, the module can be configured to communicate
with external sensors, can use security configurations, and can be optimized for low power
consumption. To fulfill the specific requirements of the application, a tailored firmware can
be developed on the basis of the Proteus-e hardware (see chapter 13 ).
Ultra small dimensions of 7 x 9 mm including a strongly miniaturized PCB antenna make
the Proteus-e ideal for small form factor design. It is possible to connect an external anten-
na, in case higher radio ranges are required.
A serial interface (UART) is available for communication with the host system.
Figure 1: Proteus-e
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1.1.1. Key features
The Proteus-e offers the following key features:
SPP-like connection-based secured data transmission: The Proteus-e firmware imple-
ments an SPP-like Bluetooth®LE profile that allows the bidirectional data transmission
between two Proteus-e and/or to other Bluetooth®LE devices implementing the SPP-
like profile. Secured connections allow the transmission of encrypted and authenticat-
ed data.
Remote GPIOs: The Proteus-e firmware allows to switch free module GPIOs via remote
control. More information can be found in chapter 11 .
Advanced customization capabilities: The configurable UUID and the appearance of the
Bluetooth®LE profile, enable to personalize the Proteus-e to fuse with the user’s end
product. For more information see chapter 12 .
Custom advertising data: Furthermore, the complete content of the advertising and scan
response packet can be customer defined. With this, any beacon function can be
realized. For more information see chapter 5.7 .
Low power position sensing solutions: The TX power of any Proteus-e is always trans-
mitted during advertising. With this, distance estimation and position sensing solutions
can be realized conveniently.
Fast serial interface: The Proteus-e offers a UART-interface to communicate with a host
using a user-defined baud rate and a simple command interface. Furthermore, the
firmware provides the so called "transparent mode" (see chapter 10 ), which is formerly
known as "peripheral only mode" in Proteus-I,-II and -III. This mode offers a transparent
UART interface such that an easy adaption of already existing custom hardware with
the Bluetooth®LE interface is enabled.
Latest microprocessor generation provided by Nordic Semiconductor nRF52 series:
The heart of the Proteus-e is a Bluetooth®LE chip of the nRF52 series offering high
performance values combined with low power consumption. It is a 64 MHz ARM
Cortex-M4 CPU with 192kB flash + 24kB RAM and up to 4 dBm output power.
Bluetooth®5 stack: The Bluetooth®5 stack enables fast and energy efficient data trans-
mission using state-of-the-art technology of Nordic Semiconductors.
Flexible wired interfacing: The Proteus-e is equipped with extra pins suited for custom
device/sensor connection. With help of these, a tailored firmware can be developed
which is optimized to the customer’s needs. The pins can be configured to various
functions such as UART, SPI, I2C, ADC and GPIO.
Additional Bluetooth®5 radio modes: The Proteus-e provides the advanced radio modes
2 MBit mode for faster data transmission. For more information, see chapter 5.11 .
1.1.2. Connectivity
The Bluetooth®LE standard allows to setup a network with various Bluetooth®LE devices
from different manufacturers. To be able to communicate with Proteus-e devices, the SPP-
like profile must be known and implemented by all network participants.
The advanced developer guide of Proteus-e (application note ANR024 [2]) contains the de-
sign data of the SPP-like profile, to implement it for example in smart phone apps.
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1.2. Block diagram
Proteus-eProteus-e
ShieldingShielding
Wireless MCUWireless MCU
High accuracy
crystal
High accuracy
crystal
RF Filter & 50Ω
matching
RF Filter & 50Ω
matching
UART,
Reset, GPIO,
SWD
UART,
Reset, GPIO,
SWD
Power
supply
Power
supply
DCDC voltage
regulator
DCDC voltage
regulator
ARM Cortex M4,
Flash, RAM
ARM Cortex M4,
Flash, RAM
Radio core,
2.4GHz
Bluetooth 5.1
Radio core,
2.4GHz
Bluetooth 5.1
50Ω port to λ/4
antenna
50Ω port to λ/4
antenna
AntennaAntenna
external wiring
according to trace
design
Figure 2: Block diagram of the module
1.3. Ordering information
WE order code Description
2612011024000 Proteus-e Bluetooth®LE Module, Tape & Reel
2612019024001 Proteus-e Evaluation Board
Table 1: Ordering information
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2. Electrical specifications
As not otherwise stated measured on the evaluation board of the Proteus-e with T=25°C,
VDD=3V, f=2.44GHz, internal DC-DC converter in use.
2.1. Recommended operating conditions
Parameter Min. Typ. Max. Unit
Ambient temperature -40 25 85 °C
Supply voltage (VDD) 1.813 3.6 V
Supply rise time (0V to ≥1.7V) 60 ms
Table 2: Recommended operating conditions
The on-chip power-on reset circuitry may not function properly for rise times
longer than the specified maximum.
An instable supply voltage may significantly decrease the radio performance
and stability.
2.2. Absolute maximum ratings
Parameter Min. Max. Unit
Supply voltage (VDD) -0.3 +3.9 V
Voltage on any digital pin (VDD<3.6V) -0.3 VDD+0.3 V
Voltage on any digital pin (VDD≥3.6V) -0.3 3.9 V
Input RF level 10 dBm
Flash endurance 10 000 Write/erase cycles
Table 3: Absolute maximum ratings
1Power fail comparator is set to 1.8V to avoid flash fail due to voltage drop.
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2.3. Power consumption
2.3.1. Static
Parameter Power Test conditions Value Unit
TX Current
consumption
RF_TXPower = 4
Transmitter only with DC/DC
converter from nRF52 data
sheet, CPU current not included
8 mA
Full module current
consumption 9.3 mA
RF_TXPower = 0
Transmitter only with DC/DC
converter from nRF52 data
sheet, CPU current not included
5.8 mA
Full module current
consumption 7.1 mA
Table 4: Current consumption - transmitting
Parameter Test conditions Value Unit
RX Current
consumption
Transmitter only with DC/DC
converter from nRF52 data sheet,
CPU current not included
6.1 mA
Full module current consumption 6.8 mA
Table 5: Current consumption - receiving
Parameter Test conditions Value Unit
Current consumption Sleep (system off
mode) 0.3 µA
Current consumption reduction
through CMD_UARTDISABLE_REQ
TBD µA
Table 6: Current consumption - low power
Due to the Bluetooth®LE time slot operation, the real operating currents are
reduced significantly and depend on the user selectable advertising and con-
nection interval settings.
Sleep current is significantly increasing for temperatures above 30°C.
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Figure 3: Sleep current (no RAM retention, wake on reset) over operating temperature range
Figure 4: Radio transmitting @ 4 dBm output power, 1 Mbps Bluetooth®LE mode, Clock =
HFXO, Regulator = DC/DC (typical values)
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2.3.2. Dynamic
Besides the static TX, RX, idle and sleep current the average current is of interest. Here
an example for a typical behavior of a peripheral device in advertising mode (see Figure 5 ).
Currents and state durations are dependent on the configuration of the module. In this state
the module transmits the advertising packets on the three advertising channels.
Nordic Semiconductor provides an online tool calculating the average current of a Bluetooth®
connection. It can be accessed at https://devzone.nordicsemi.com/power/ .
Figure 5: Current consumption calculation in advertising mode with 40ms advertising interval
with 4 dBm output power, UART disabled
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2.4. Radio characteristics
Parameter Min. Max. Unit
RSSI accuracy valid range (±2dB) -90 -20 dBm
Table 7: RSSI accuracy
Parameter Value Unit
Enable TX or RX delay 140 µs
Enable TX or RX delay (fast mode) 40 µs
Disable TX delay 6 µs
Disable RX delay 0 µs
Table 8: Timing
Parameter Test conditions Value Unit
Output power RF_TXPower = 4, conducted +4 dBm
RF_TXPower = 4, radiated -4 dBm
Input sensitivity Conducted, BER=1E-3, 1Mbps -93 dBm
Conducted, BER=1E-3, 1Mbps, LDO mode -97 dBm
Radiated, BER=1E-3, 1Mbps -85 dBm
Table 9: Transmit and receive power
All transmit and receive power levels are measured on the evaluation board. The values
already include losses of transitions from module to motherboard to SMA or modules PCB
antenna. They are realistic values for the end application.
Sensitivity in the table above is stated for the common used bit error rate of 0.1%. In the table
below the sensitivity is stated for a packet error rate of 1% with a payload length of 38 byte
at different data rates. The PER 1% is a harder criteria resulting in 2 dBm less sensitivity.
Parameter Test conditions Value Unit
Input sensitivity 1Mbit Phy, PER 1% -91 dBm
2Mbit Phy, PER 1% -88 dBm
Table 10: Sensitivity at different data rates
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2.5. Pin characteristics
Specifications from nRF52 data sheet are reported here below.
Parameter Min. Typ. Max. Unit
Input high voltage 0.7 ×VCC VCC V
Input low voltage VSS 0.3 ×VCC V
Current at VSS+0.4 V, output set low, standard
drive, VDD ≥1.7V 1 2 4 mA
Current at VSS+0.4 V, output set low, high drive,
VDD ≥2.7 V 6 10 15 mA
Current at VSS+0.4 V, output set low, high drive,
VDD ≥1.7 V 3 mA
Current at VDD-0.4 V, output set high, standard
drive, VCC ≥1.7V 1 2 4 mA
Current at VDD-0.4 V, output set high, high
drive, VDD ≥2.7 V 6 9 14 mA
Current at VDD-0.4 V, output set high, high
drive, VDD ≥1.7 V 3 mA
Internal pull-up resistance 11 13 16 kΩ
Internal pull-down resistance 11 13 16 kΩ
Table 11: Pin characteristics
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3. Pinout
ANT
RF
SWDCLK
SWDIO
/RESET
VDD
GND
GPIO_1
URXD
UTXD
BUSY/
LED_1
/CTS
/RTS
GPIO_2
MODE_1
16
B1
7
10
11
15
B4
GND
UART_ENABLE
Figure 6: Pinout (top view)
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