A High Level Driver for ADS1298 Control with Raspberry Pi
For the latest version, you can install the package from the sources using the setup.py script
python setup.py install
or in developer mode to be able to modify the sources.
python setup.py develop
The Raspberry Pi 4b is used as a reference
| Signal | RPi GPIO | ADS Pin |
|---|---|---|
| MOSI | 20 | DIN |
| MISO | 19 | DOUT |
| SCLK | 21 | SCLK |
| CS | 24 | CS |
| START | 22 | START |
| RESET | 24 | nRESET |
| PWRDN | 25 | nPWRDN |
| DRDY | 23 | DRDY |
Connect sensing electrode to P (+) and ref to SRB1. With default config, the API doesn't enable the bias, that should help if you want to test with only a few electrodes.
It is easy as :
from RaspberryPiADS1298 import Ads1298Api
from time import sleep
# init ads api
ads = Ads1298Api()
# init device
ads.open_device()
# attach default callback
ads.register_client(DefaultCallback)
# configure ads
ads.configure(sampling_rate=1000)
print("ADS1298 API test stream starting")
# begin test streaming
ads.start_test_stream()
# begin ExG streaming
# ads.startExgStream()
# wait
sleep(10)
print("ADS1298 API test stream stopping")
# stop device
ads.stop_stream()
# clean up
ads.close_device()
sleep(1)
print("Test Over")Fred Simard (ADS1299 driver) Torfinn Berset (ADS1298 driver)