Inkplate 6 COLOR touch pad support missing from library

TECHNICAL SUPPORT Inkplate
1

Customer:

The recent Inkplate Arduino library added support for the PCAL6416AHF and I can now read the battery voltage. However, the library code excludes the code necessary to read the touch pads on the Inkplate 6 COLOR. Looking at System.cpp lines 46-81, the readTouchpad() function is wrapped in #if !defined(ARDUINO_INKPLATE2) && !defined(ARDUINO_INKPLATECOLOR), which excludes it from the build. Why was it excluded? When can I expect touch pad support to be included? I’ve also been waiting for the hardware files for the Inkplate 6 COLOR on your Git - when will they be available?

System.cpp lines 46-81:

#if !defined(ARDUINO_INKPLATE2) && !defined(ARDUINO_INKPLATECOLOR)
/**
 * @brief readTemperature reads panel temperature
 *
 * @return returns temperature in range from -10 to 85 degree C with
 * accuracy of +-1 in range from 0 to 50
 */
int8_t System::readTemperature() {
  int8_t temp;
  if (getPanelState() == 0) {
    WAKEUP_SET;
    PWRUP_SET;
    delay(5);
  }
  Wire.beginTransmission(0x48);
  Wire.write(0x0D);
  Wire.write( );
  Wire.endTransmission();
  delay(5);

  Wire.beginTransmission(0x48);
  Wire.write(0x00);
  Wire.endTransmission();
  Wire.requestFrom(0x48, 1);
  temp = Wire.read();
  if (getPanelState() == 0) {
    PWRUP_CLEAR;
    WAKEUP_CLEAR;
    delay(5);
  }
  return temp;
}

/**
 * @brief readTouchpad reads touchpad pin to check if triggered
 *
 * @param uint8_t _pad
 * touchpad pin to check
 *
 * @return value to indicate if touchpad is triggered (TRUE or FALSE)
 */
uint8_t System::readTouchpad(uint8_t _pad) {
  return digitalReadInternal(IO_INT_ADDR, ioRegsInt, _pad);
}
#endif

Originally submitted via the contact form on soldered.com on 25 April 2023. Migrated to the forum for community visibility.

2

Soldered Support:

We recently created an example for waking Inkplate from deep sleep via touch pads. The temperature function is turned off because the Inkplate 6 COLOR does not have a TPS for power management, and instead has a temperature sensor on it. For touch pad support in the main library, we will look and add it as soon as possible. We can send you the hardware files directly.

3

Soldered Support:

Here is the schematic and 3D file for Inkplate 6 COLOR with touch pads.

Attachment omitted in migration: Inkplate6_color_V2.2.0.pdf

Attachment omitted in migration: Inkplate6_COLOR_3D.step