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Add SCREEN_PWM_DUTY_CYCLE env var

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Change-type: patch
This commit is contained in:
Alexis Svinartchouk 2020-12-09 12:51:34 +01:00
parent c77f595724
commit c519710062
1 changed files with 12 additions and 0 deletions
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12
update-config-and-start.js
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@ -122,7 +122,19 @@ function zip(...arrays) {
return arrays[0].map((_, i) => arrays.map(array => array[i]));
}
async function updateScreenPWMDutyCycle() {
const dutyCycle = parseInt(env.SCREEN_PWM_DUTY_CYCLE);
if (dutyCycle !== undefined) {
try {
await fs.writeFile('/sys/class/pwm/pwmchip2/pwm0/duty_cycle', dutyCycle.toString());
} catch (error) {
console.error('Could not update screen PWM duty cycle', error);
}
}
}
async function main() {
await updateScreenPWMDutyCycle();
const osVersion = await getOsVersion();
const defaultConfig = db.default;
const hw = db[ETCHER_PRO_VERSION] || {};