Radio frequency ASK/OOK decoder/encoder, transmitter/receiver

315/433MHz ASK/OOK transmitting/receving with cheap (RMB 5) transmitter/receiver modules, no HackRF needed.

• Features: supports PWM, Biphase(Manchester) code; dump to/load from files; compare signals, trigger actions
• Platform: Linux (Raspberry Pi), Python 2.x/3.x
• Ver: 0.7
• Updated: 5/26/2018
• Created: 8/7/2017
• Author: loblab

Hardware

• Raspberry Pi 2/3
• ASK/OOK transmitter/receiver

Usage

Run programs with '-h' option to see details.

• ask_tx.py: Send ASK/OOK commands in ask_confg.py

• ask_rx.py: Receive ASK/OOK signals and auto decode, save to files, optionally trigger actions for specified signals

• test.py: self test cases. run without device.

Setup

For python 2.x

sudo apt-get install python-pip
sudo pip install RPi.GPIO bitstring
cp ask_config_sample.py ask_config.py

For python 3.x

sudo apt-get install python3-pip
sudo pip3 install RPi.GPIO bitstring
cp ask_config_sample.py ask_config.py

Connect transmitter/receiver to Pi's GND/VCC/GPIO, and modify ask_config.py for your RF devices.

History

• 0.7 (5/26/2018): Supports python3
• 0.6 (9/27/2017): Reorganized main programs, OOP based; merged ask_monitor.py to ask_rx.py; more error checks & protections
• 0.5 (9/24/2017): Supports command line options; can transmit multiple commands/files and wait
• 0.4 (9/23/2017): Supports biphase(Manchester) decoding/encoding; Auto detect signal type; test scripts support multiple cases
• 0.3 (8/31/2017): Receiver supports signal without start high/low level, any gap can devide signals; added monitor & action
• 0.2 (8/11/2017): OOP; based on timestamp instead of sample count; don't use callback
• 0.1 (8/7/2017) : Initial version, supports decode/encode, transmitter/receiver