How the MAX6675 K-Type Thermocouple Sensor works together with ESP32- 4.3-inch Display touchscreen
I have a board of 4.3 Inch ESP32 HMI 480x272 LCD Resistive Touch Screen. I connected the pins going to the SD card on the board to use the MAX6675 K-Type Thermocouple Sensor by soldering the jumpers. I can take measurements for MAX6675 K-Type Thermocouple from the ESP32 screen. However, when I press the screen's touchscreen, the program breaks and both the touch and sensor reading do not work. So how can I ensure that both the sensor and the touchscreen work smoothly?
Thank you.
Comments
You can insert the CD74HC4067 chip into the breadboard, and use Dupont wires to connect the control pins of the CD74HC4067 chip to the unused pins on the ESP32 chip. If your project does not need to use a speaker, you can occupy the IO18, IO42, and IO17 pins of the speaker, plus the IO38 pin of the GPIOD, which is enough for 4 control pins.