https://github.com/mongoose-os-libs/esp32-touchpad

JS bindings for ESP32 touch pad sensor
https://github.com/mongoose-os-libs/esp32-touchpad

Last synced: 21 days ago
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JS bindings for ESP32 touch pad sensor

• Host: GitHub
• URL: https://github.com/mongoose-os-libs/esp32-touchpad
• Owner: mongoose-os-libs
• License: other
• Created: 2017-11-08T15:23:38.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2021-12-15T00:17:13.000Z (almost 3 years ago)
• Last Synced: 2024-07-31T21:52:50.170Z (4 months ago)
• Language: JavaScript
• Size: 9.77 KB
• Stars: 6
• Watchers: 5
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-mongoose-os - esp32-touchpad - JS bindings for ESP32 touch pad sensor (Awesome Mongoose OS [](https://awesome.re) / Official Libraries)

README

        
# JS bindings for ESP32 touch pad sensor

## Overview

This library provides JavaScript bindings for the ESP32 touch pad sensor.

The JS API largely mirrors the [C API](https://github.com/espressif/esp-idf/blob/master/components/driver/include/driver/touch_pad.h).

## Examples

### Polling the sensor manually

```js

load('api_esp32_touchpad.js');

// Touch sensors are numbered from 0 to 9.

// For convenience, TouchPad.GPIO map translates from GPIO number to sensor number.

let ts = TouchPad.GPIO[15];

TouchPad.init();

TouchPad.setVoltage(TouchPad.HVOLT_2V4, TouchPad.LVOLT_0V8, TouchPad.HVOLT_ATTEN_1V5);

TouchPad.config(ts, 0);

Timer.set(1000 /* 1 sec */, Timer.REPEAT, function() {

  let tv = TouchPad.read(ts);

  print('Sensor', ts, 'value', tv);

}, null);

```

### Using interrupts

```js

load('api_esp32_touchpad.js');

// Touch sensors are numbered from 0 to 9.

// For convenience, TouchPad.GPIO map translates from GPIO number to sensor number.

let ts = TouchPad.GPIO[15];

TouchPad.init();

TouchPad.filterStart(10);

TouchPad.setMeasTime(0x1000, 0xffff);

TouchPad.setVoltage(TouchPad.HVOLT_2V4, TouchPad.LVOLT_0V8, TouchPad.HVOLT_ATTEN_1V5);

TouchPad.config(ts, 0);

Sys.usleep(100000); // wait a bit for initial filtering.

let noTouchVal = TouchPad.readFiltered(ts);

let touchThresh = noTouchVal * 2 / 3;

print('Sensor', ts, 'noTouchVal', noTouchVal, 'touchThresh', touchThresh);

TouchPad.setThresh(ts, touchThresh);

TouchPad.isrRegister(function(st) {

  // st is a bitmap with 1 bit per sensor.

  let val = TouchPad.readFiltered(ts);

  print('Status:', st, 'Value:', val);

}, null);

TouchPad.intrEnable();

```