pya7106: Python library for the A7106 radio module

This library is designed to interface an Amicom A7106 2.4G FSK/GFSK Transceiver with a Rasberry Pi. These are very cheap radios that we found in used E-Ink tags.

Wiring

Connect the RST pin to GND so that the MSP430 stays in reset the whole time. Connect a jumper to the VCC pin to supply 3.3V.

Solder jumpers to the six test pads.

Connect the radio to the Pi using the RX pins. If you have two radios for transceiver testing, connect the second to the TX pins.

Signal	Pi RX pin	Pi TX pin	Notes
VCC			3.3V on the Pi header
CS	GPIO2	GPIO10	Chip Select
CK	GPIO3	GPIO9	Clock
DA	GPIO4	GPIO11	Data from Pi to radio
GND			Any of the ground pins on the Pi header
IO1	GPIO17	GPIO5	Data from radio to Pi, after configuration
IO2	GPIO27	GPIO6	WTR signal from Radio to Pi, high when TX/RX are completed

Running the RX server

./a7106.py --mode rx

References

• Datasheet: https://datasheet.lcsc.com/szlcsc/2001071135_AMICCOM-Elec-A71X06AQFI-Q_C479510.pdf
• Companion library: https://github.com/osresearch/eink-pricetags
• Sample Arduino code: https://www.arduino.cn/thread-49468-1-1.html
• FIFO mode reference code: http://docsplayer.com/134201791-%E5%88%9D%E5%A7%8B%E5%8C%96a7121.html