RAYTAC MDBT42Q-PATM User manual

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This coversheet was created by Verical, a division of Arrow Electronics, Inc. (“Verical”). The attached document was created by the part supplier,
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MDBT42Q-PATM
Raytac Corporation
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Version: A
Issued Date: 2018/10/19
Approval Sheet
(產品承認書)
產品名稱 (Product): BT 4.2 / BT 5 Module (nRF52832)
產品型號 (Model No.): MDBT42Q – ATM (Chip Antenna)
MDBT42Q – PATM (PCB Antenna)
Advantage of MDBT42Q & MDBT42Q-P series:
1. Long working distance:
MDBT42Q: over 80 meters in open space.
MDBT42Q-P: up to 60 meters in open space.
2. Declaration ID includes all Nordic applied profiles.
3. Granted main regional certification such as FCC (USA), CE(EU)
TELEC (Japan), SRRC (China), IC (Canada), NCC (Taiwan),
and KC (South Korea).

Index
1. Overall Introduction ...................................................................................................... 4
2. AT Command ................................................................................................................. 4
2.1. List of supported commands................................................................................. 4
2.2. AT Command Sets................................................................................................ 5
2.3. Default Info ......................................................................................................... 13
2.4. Pin Assignment................................................................................................... 15
3. How to Control External MCU .................................................................................... 17
3.1. How to Send AT Commands............................................................................... 17
3.2. How to Return to Flashed Default Setting........................................................... 18
3.3. How to Start Scanning........................................................................................ 20
4. Report of Data Transmission...................................................................................... 23
5. Product Dimension ..................................................................................................... 25
5.1. PCB Dimensions & Pin Indication....................................................................... 25
5.2. Recommended Layout of Solder Pad................................................................. 27
5.3. RF Layout Suggestion (aka Keep-Out Area) ...................................................... 30
5.4. Footprint & Design Guide ................................................................................... 32
6. Main Chip Solution...................................................................................................... 33
7. Shipment Packaging Information .............................................................................. 33
7.1. Marking on Metal Shield ..................................................................................... 34
7.2. Tray Info.............................................................................................................. 34
8. Specification ................................................................................................................ 35
8.1. Absolute Maximum Ratings ................................................................................ 35
8.2. Operation Conditions.......................................................................................... 35
8.3. Electrical Specifications...................................................................................... 36
9. Reference Circuit......................................................................................................... 41
10. Certification ................................................................................................................. 42
10.1. Declaration ID..................................................................................................... 42
10.2. FCC Certificate (USA) ........................................................................................ 44
10.3. TELEC Certificate (Japan).................................................................................. 45
10.4. NCC Certificate (Taiwan) .................................................................................... 46
10.5. CE Test Report (EU)........................................................................................... 48
10.6. IC Certificate (Canada)....................................................................................... 50
10.7. SRRC Certificate (China).................................................................................... 51
10.8. KC Certificate (South Korea) .............................................................................. 52
10.9. RoHS & REACH Report ..................................................................................... 53
10.10. End-Product Label.............................................................................................. 53

11. Notes and Cautions..................................................................................................... 55
12. Basic Facts for nRF52 Chip........................................................................................ 56
13. Useful Links ................................................................................................................. 57
History of Firmware Revision............................................................................................ 58
Full List of Raytac’s BLE Modules .................................................................................... 59
Release Note....................................................................................................................... 61

4
1.Overall Introduction
Raytac’s MDBT42Q-ATM & MDBT42Q-PATM is a BT 4.2 and BT 5 stack (Bluetooth low
energy or BLE) module designed based on Nordic nRF52832 SoC solution, which
incorporates: UART interface in only central/master role for data bridge in compact size (L)
16 x (W) 10 x (H) 2.2 mm.
2.AT Command
2.1. List of supported commands
-Setting of scanned device name
-Setting of scanned base UUID/service UUID/TX character/RX character
-Setting of scanned RSSI threshold
-Choose data rate of 1M bps or 2M bps on-air
-Set TX output power in 5 levels.
-Set scanning time
-Enable/disable scanning
-Set LED pattern indicating scanning or connecting status
-7 sets of UART baud rates
-Enable/disable UART flow control
-Power-down mode for power saving and GPIO wake-up
-Support DC-to-DC and LDO power mode
-Use internal or external 32.768KHz oscillator
-Recover-to-default setting with hardware and software method
-System reset of hardware and software
-Set serial number and retrieve
-Retrieve MAC Address
-Retrieve ADC value for battery detection
-Support maximum MTU 247bytes / data payload up to maximum 244 bytes
-Enable/Disable Beacon information printed out through UART interface
(31 bytes beacon)
-Support scan Beacon company ID/UUID (31 bytes beacon)

5
2.2. AT Command Sets
2.2.1.“Write”Commands
No.
Command
Description
(1)
AT+NAME
Set scanned device name. Max. length of 20 characters
e.g. AT+NAME123 (device name 123, 3 characters)
(2)
AT+RESET
Set to reset system
(3)
AT+SCANOLDSTART
Set to start scanning paired device
(4)
AT+SCANNEWSTART
Set to start scanning ALL devices
(5)
AT+SCANSTOP
Set to stop scanning
(6)
AT+SLEEP
Set to get into deep sleep mode
(7)
AT+BAUDRATE9600
Set UART baud rate at 9600 bps,n,8,1
(8)
AT+BAUDRATE19200
Set UART baud rate at 19200 bps,n,8,1
(9)
AT+BAUDRATE38400
Set UART baud rate at 38400 bps,n,8,1
(10)
AT+BAUDRATE57600
Set UART baud rate at 57600 bps,n,8,1
(11)
AT+BAUDRATE115200
Set UART baud rate at 115200 bps,n,8,1
(12)
AT+BAUDRATE230400
Set UART baud rate at 230400 bps,n,8,1
(recommended enabling flow control)
(13)
AT+BAUDRATE460800
Set UART baud rate at 460800 bps,n,8,1
(recommended enabling flow control)
(14)
AT+FLOWCONTROLDIS
Disable UART flow control
(15)
AT+FLOWCONTROLEN
Enable UART flow control
(16)
AT+TXPOWER4DBM
Set RF TX power at + 4dBm
(17)
AT+TXPOWER0DBM
Set RF TX power at 0dBm
(18)
AT+TXPOWER-4DBM
Set RF TX power at - 4dBm
(19)
AT+TXPOWER-8DBM
Set RF TX power at - 8dBm
(20)
AT+TXPOWER-20DBM
Set RF TX power to - 20dBm
(21)
AT+XTALINTERNAL
Use internal RC 32.768KHZ low frequency oscillator
(22)
AT+XTALEXTERNAL
Use external crystal 32.768KHZ low frequency oscillator
(23)
AT+CONNECTINDICATORLOW
Set logic low output when connecting BT
(24)
AT+CONNECTINDICATORHIGH
Set logic high output when connecting BT

6
No.
Command
Description
(25)
AT+PHYMODE1MBPS
Set PHY mode at 1Mbps
(26)
AT+PHYMODE2MBPS
Set PHY mode at 2Mbps
(27)
AT+WAKEUPLOW
Set logic low at wake-up when in deep sleep
(28)
AT+WAKEUPHIGH
Set logic high at wake-up when in deep sleep
(29)
AT+IDLETIMEtttt
Set idle time (Hex)
e.g. 0x001E (min. 30secs),
0x0258 (Max. 600secs)
0x0000 (forever)
(30)
AT+SCANOLDTIMEtttt
Set time of scanning of paired device (Hex)
e.g. 0x001E (min. 30secs),
0x0258 (Max. 600secs)
0x0000 (forever)
(31)
AT+SCANNEWTIMEtttt
Set time of scanning all devices (Hex)
e.g. 0x001E (min. 30secs),
0x0258 (Max. 600secs)
0x0000 (forever)
(32)
AT+DCDCDIS
Disable DC to DC converter
(33)
AT+DCDCEN
Enable DC to DC converter
(34)
AT+CONNECTINTERVALMODE0
Set connection interval mode for Peripheral 20ms/40ms
usage (min. 20ms / Max. 75ms),
(35)
AT+CONNECTINTERVALMODE1
Set connection interval mode for Peripheral 8ms/8ms
usage (min. 8ms / Max. 8ms)
(36)
AT+IDLEPATTERNnnnnffff
Set LED idle pattern (Hex), where
n = time when LED on, f = time when LED off
e.g. 0x0064 (min. 100ms)
0x1388 (Max. 5,000ms)
0x00000000 (off)
0xFFFFFFFF (on)
(37)
AT+CONNECTPATTERNnnnnffff
Set LED connecting pattern (Hex), where
n = time when LED on, f = time when LED off
e.g. 0x0064 (min. 100ms)
0x1388 (Max. 5,000ms)
0x00000000 (off)
0xFFFFFFFF (on)

7
No.
Command
Description
(38)
AT+SCANOLDPATTERNnnnnffff
Set LED pattern for scanning paired device (Hex), where
n = time when LED on, f = time when LED off
e.g. 0x0064 (min. 100ms)
0x1388 (Max. 5000ms)
0x00000000 (off)
0xFFFFFFFF (on)
(39)
AT+SCANNEWPATTERNnnnnffff
Set LED pattern for scanning all devise (Hex), where
n = time when LED on, f = time when LED off
e.g. 0x0064 (min. 100ms)
0x1388 (Max. 5000ms)
0x00000000 (off)
0xFFFFFFFF (on)
(40)
AT+SERIALNOnnnnnnnn
Set serial number
e.g. AB000001, fixed 8-character length
(41)
AT+RESPONSEDIS
Disable response when sending “write” command
(42)
AT+RESPONSEEN
Enable response when sending “write” command
(43)
AT+DISCONNECT
Terminate the connection
(44)
AT+RSSITHRESHOLDnnn
Set RSSI threshold for scanning all devices (Ascii),
e.g. -69 (min.); -29 (Max.)
(45)
AT+BEACONINFODIS
Disable scanning beacon (31 bytes)
(46)
AT+BEACONINFOEN
Enable scanning beacon (31 bytes)
When AT+BEACONINFOEN is set, the device become a
BEACON SCANNER only. If you want to exchange data,
please set “AT+BEACONINFODIS”.
(47)
AT+COMPANYIDdddd
Set company ID for beacon (Hex),
e.g. 0x004C (for Apple ID)
(48)
AT+BEACONUUID
uuuuuuuuuuuuuuuu
uuuuuuuuuuuuuuuu
Set UUID for beacon (Hex),
e.g. 0112233445566778899AABBCCDDEEFF0
(49)
AT+TXCHARACTERUUIDuuuu
Set TX character UUID for NUS (Hex),
e.g. 0x0003

8
No.
Command
Description
(50)
AT+RXCHARACTERUUIDuuuu
Set RX character UUID for NUS (Hex),
e.g. 0x0002
(51)
AT+SERVICEUUIDuuuu
Set service UUID for NUS (Hex),
e.g. 0x0001
(52)
AT+BASEUUID
uuuuuuuuuuuuuuuu
uuuuuuuuuuuuuuuu
Set base UUID for NUS (Hex),
e.g. 9ECADC240EE5A9E093F3A3B50000406E
13th & 14th byte is reserved for service / TX character
RX character UUID, always be 0000.
(53)
AT+DEFAULT
Back to default

9
2.2.2.“Read”Commands
No.
Command
Description
(1)
AT?NAME
To retrieve scanned device name
(2)
AT?VERSION
To retrieve firmware version
(3)
AT?MACADDR
To retrieve IC MAC address
(4)
AT?BAUDRATE
To retrieve current UART baud rate
(5)
AT?FLOWCONTROL
To retrieve UART status of flow control
(6)
AT?TXPOWER
To retrieve RF TX power
(7)
AT?XTAL
To retrieve status of 32.768KHz oscillator
(8)
AT?CONNECTINDICATOR
To retrieve logic of pin for BT-connecting indicator
(9)
AT?PHYMODE
To retrieve status of PHY mode
(10)
AT?WAKEUP
To retrieve logic of wake-up pin
(11)
AT?IDLETIME
To retrieve idle time (Hex)
(12)
AT?SCANOLDTIME
To retrieve time of scanning paired device (Hex)
(13)
AT?SCANNEWTIME
To retrieve time of scanning all devices (Hex)
(14)
AT?DCDC
To retrieve DC to DC converter status
(15)
AT?CONNECTINTERVALMODE
To retrieve status of connection interval mode
(16)
AT?IDLEPATTERN
To retrieve LED idle pattern (Hex)
(17)
AT?CONNECTPATTERN
To retrieve LED connecting pattern (Hex)
(18)
AT?SCANOLDPATTERN
To retrieve LED pattern when scanning paired device (Hex)
(19)
AT?SCANNEWPATTERN
To retrieve LED pattern when scanning all devices (Hex)
(20)
AT?SERIALNO
To retrieve serial number
(21)
AT?ADCVALUE
To retrieve 10bit ADC value
(22)
AT?RESPONSE
To retrieve status of response
(23)
AT?RSSITHRESHOLD
To retrieve scanning new RSSI threshold value (Ascii)
(24)
AT?CONNECTRSSI
To retrieve RSSI value when in BLE connection (Ascii)
(25)
AT?BEACONINFO
To retrieve beacon information
(26)
AT?COMPANYID
To retrieve company ID value (Hex)
(27)
AT?BEACONUUID
To retrieve beacon UUID value (Hex)