ant+をraspberry piで使う（node.js）

ラズパイでant+を使います

参考
https://www.johannesbader.ch/2014/06/track-your-heartrate-on-raspberry-pi-with-ant/

仕様物

• AZ4U
• ForeAthlete 235J

raspberry pi AZ4Uを扱う

sudo apt-get install -y libusb-1.0-0-dev libudev-dev

/etc/udev/rules.d/garmin-ant2.rules を新規追加

/etc/udev/rules.d/garmin-ant2.rules

SUBSYSTEM=="usb", ATTRS{idVendor}=="0fcf", ATTRS{idProduct}=="1008", RUN+="/sbin/modprobe usbserial vendor=0x0fcf product=0x1008", MODE="0666", OWNER="pi", GROUP="root"

nodejsのインストール

sudo apt install -y nodejs npm
sudo npm install n -g
sudo n stable
sudo apt remove --purge nodejs npm

適当にプログラムをかく

set up

mkdir -p ~/project/ant
cd ~/project/ant
npm init
npm install ant-plus

example

index.jsに書く

index.js

const Ant = require("ant-plus");
const stick = new Ant.GarminStick2();
const sensor = new Ant.HeartRateSensor(stick);
let count = 0;

sensor.on("hbData", function(data) {
  count += 1;
  console.log(count, data.DeviceID, data.ComputedHeartRate);
});

stick.on("startup", function() {
  console.log("on start up");
  sensor.attach(0, 0);
});
async function main() {
  if (!stick.open()) {
    console.log("Stick not found!");
    return;
  }
}
main();

start

node index.js