Ai-Thinker Technology Ra-01SC User manual

Ra-01SC Specification V1.1
Ra-01SC Specification
Version V1.1
Copyright ©2021
Copyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 1 of 19

Ra-01SC Specification V1.1
Disclaimer and copyright notice
The information in this article, including the URL address for reference, is subject to change without
prior notice.
The documentation is provided "as is" without any warranty, including any warranties of
merchantability, fitness for a particular purpose, or non-infringement, and any warranties mentioned in the
proposal, specification or sample. This document is not responsible for any infringement of any patent rights
arising out of the use of the information in this document. No license, express or implied, by estoppel or
otherwise, is hereby granted.
The test data obtained in this paper are all obtained by Ai-Thinker laboratory , and the actual results
may be slightly different.
The Wi-Fi alliance membership mark is owned by the WiFi alliance.
All trade mark names, trademarks and registered trademarks mentioned herein are the property of their
respective owners and are hereby declared.
The final interpretation right is owned by Shenzhen Ai-Thinker Technology Co., Ltd.
Note
The contents of this manual may be changed due to the version upgrade of the product or other reasons.
Shenzhen Ai-Thinker Technology Co., Ltd. reserves the right to modify the contents of this manual without
any notice. This manual is only used as a guide, and Shenzhen Ai-Thinker Technology Co., Ltd. makes every
effort to provide accurate information in this manual, but Shenzhen Ai-Thinker Technology Co., Ltd. does
not ensure that the contents of the manual are completely true,, All statements and information in this manual.
and the recommendations do not constitute for any warranty, express or implied.
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Ra-01SC Specification V1.1
Document development/revision/revocation resume
Vision Data Revised content Edition Approve
V1.0 2021.3.15 First Edition Shengxin Zou Ning Guan
V1.1 2021.3.31 Update Shengxin Zou Ning Guan
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Ra-01SC Specification V1.1
CONTENT
1 Product Overview............................................................................................................................................. 5
1.1. Characteristics ................................................................................................................................... 5
1.2 Main parameters................................................................................................................................... 6
2 Electrical parameters ........................................................................................................................................ 7
2.1. Electrical character............................................................................................................................... 7
2.2. Digital port characteristics ................................................................................................................... 7
2.3. SPI Interface features ........................................................................................................................... 8
3 Appearance size................................................................................................................................................ 8
4 Pin function....................................................................................................................................................... 9
5 Schematics...................................................................................................................................................... 11
6 Design guidance ............................................................................................................................................. 12
6.1 Application Circuit............................................................................................................................ 12
6.2 Recommended module package design size....................................................................................... 12
6.3 Antenna installation............................................................................................................................. 13
6.4 Power Supply ...................................................................................................................................... 13
6.5 GPIO.................................................................................................................................................... 14
6.6 Software writing.................................................................................................................................. 14
7FAQ............................................................................................................................................................................... 16
7.1 Factors affecting transmission distance .............................................................................................. 16
7.2 Module use reminder........................................................................................................................... 16
7.3 Interfering factors ................................................................................................................................ 16
8Reflow Welding Curve ................................................................................................................................... 17
9Related models and antenna guide................................................................................................................. 17
10 Packaging information ................................................................................................................................. 18
11 Contact us .................................................................................................................................................... 18
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Ra-01SC Specification V1.1
1. Product Overview
LoRa series module Ra-01Sc is designed and developed by Shenzhen Ai-Thinker
Technology Co., Ltd. This module is used for ultra-long distance spread spectrum
communication. Its RF chip LLCC68 mainly uses LoRa ™ remote modem for ultra-long
distance spread spectrum communication, with strong anti-interference and low power
consumption. LLCC68 chip has a high sensitivity of over-129 dBm, a 20 dBm power output, a
long transmission distance and a high reliability with SEMTECH's LoRa ™ patent modulation
technique. Meanwhile, comparing with the traditional modulation technology,LoRa ™
provides significant advantages in both blocking and selectivity over conventional modulation
techniques. It solves the problem of simultaneously balance the distance, the anti-interference
and the power consumption which the traditional design scheme can’t achieve.
Application areas
automatic meter reading, supply chain and logistics, home building automation, security
system, remote irrigation system.
1.1.
Characteristics
Support spreading factor:SF5/SF6/SF7/SF8/SF9/SF10/SF11
Small volume double row stamp hole patch for SMD package
Adopts SPI interface, half-duplex communication, with CRC, up to 256-b yte packet
engine





LoRa™ modem
Support
FSK

Frequency supports 410MHz~525MHz
Operating voltage is 3.3V, Max current
:140m
Low power consumption in a received state, the min received current is 4.2mA
，stand-
by
current is 0.6mA
High sensitivity
：
As low as -129dBm
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Ra-01SC Specification V1.1
1.2 Main parameters
T
able 1 main parameters instruction
Model Ra-01SC
Package SMD16
Size 17*16*3.2(±0.2)mm
Antenna Spring antenna
Frequency
range 410MHz~525MHz
Operating
Temperature
-40 ℃ ~ 85 ℃
Storage
environment
-40 ℃ ~ 125 ℃ , < 90%RH
Power supply 2.7~3.6V，typical value 3.3V，recommended current > 200mA
Support
Interface SPI
Programmable
bit rate Max up to 300Kbps
Crystal
frequency 32MHz
Transmission
distance
In an open environment, this module match with spring antenna the
transmitting range can reach 2.8km or match with suction cup antenna
the transmitting range can reach 4.6km.
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Ra-01SC Specification V1.1
2. Electrical parameters
Ra-01SC series modules are electrostatic sensitive devices, special precautions need to be taken when
handling.
Note：
Ra-01SC module is electrostatic sensitive devices
（ ESD ）， It requires special ESD precautions and should
generally be classified as an ESD sensitive component. During the entire handling, transportation and
operation of the Ra-01SC module, proper ESD handling and packaging procedures should be used. Please do
not touch the module with hands or use a non-antistatic soldering iron for soldering, so as not to damage
the module.
2.1. Electrical character
Parameter Name Min Typ Max Unit Remarks
Operating
temperature
TOPR -40 25 85 ℃ Industrial design
Supply
voltage
VDD 2.7 3.3 3.6 V ≥3.3V(Guaranteed
output power)
2.2. Digital port characteristics
Description Typ Unit
Operating frequency 410~525 MHz
IO Name Min Typ Max Unit
IO level VIO 2.7 3.3 3.6 V
Low input logic
level
VIL - - 0.2 V
High input logic
level
VIH 0.8 - - V
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Ra-01SC Specification V1.1
Low output logic
level VOL - - 0.1 V
High output logic
level VOH 0.9 - - V
2.3. SPI Interface features
Name Description Condition Min Typ Max Unit
Fsck SCK frequency - - - 10 MHz
TCH SCK High level
time
- 50 - - ns
TCL SCK Low level time - 50 - - ns
Trise SCK Rise time - - 5 - ns
Tfall SCK Fall time - - 5 - ns
Tsetup MOSI Time setting From MOSI
change to SCK
rising edge
30 - - ns
Thold MOSI Duration Change from rising
edge of SCK to
MOSI
20 - - ns
Tnsetup NSS Set up time From NSS falling
edge to SCK rising
edge
30 - - ns
Tnhold NSS Time maintain From SCK falling
edge to NSS rising
edge, normal mode
100 - - ns
Tnhigh SPI Access interval
NSS High level time
- 20 - - ns
T_DATA DATA maintenance
and set up time
- 250 - - ns
3. Appearance size
Ra-01SC has one antenna interface ：Spring antenna
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Ra-01SC Specification V1.1
4. Pin function
Ra-01SC module is connected to 16 interfaces, refer to pin diagram, pin function definition table is interface
definition.
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Ra-01SC Specification V1.1
Ra-01SC Pin diagram
Table Pin function definition
No. Name Function instruction
1
ANT
Ground
2 GND Ground，Connect to the power reference ground
3 3.3V Typical value 3.3V，recommended current > 200mA
4
RESET
Reset
5
TXEN
RF control port
6 DIO1 Digital IO1 software configuration
7
DIO2
Digital IO2 software configuration
8
DIO3
Digital IO3 software configuration
9
GND
Ground
10 BUSY Status indicator pin（Be sure to connect to the IO port of
the master MCU
）
11
RXEN
RF control port
12
SCK
SPI clock input
13
MISO
SPI data output
14 MOSI SPI data input
15 NSS SPI chip select input
16 GND Ground，Connect to the power reference ground
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