1Touch Screen Installation
The touch screen of choice for ease of integration is an Adafruit 2050 3.5" touchscreen.
Please reference their instruction guide for soldering the and preparing the screen for communication over SPI at the below link:
You will only need to solder on the pins for the SPI interface side of the board.
We will utilize the four mounting hole to connect the touch screen to the enclosure.
We will then utilize the male to female jumper wires. The female portion will connect to the touch screen pins and the male side will be inserted into the screw terminals on the PCB.
Please connect the following items:
The screen will be used to display the pressure and volume trends as well as for adjusting settings.
Description PCB Label Argon Pin Touch Screen Label Ground GND GND GND Supply voltage +3.3V +3.3V +3.3V 3-5V SPI Clock CLK SCK (D13) CLK SPI Master in Slave Out Connection MISO MISO (D11) MISO SPI Master out Slave In Connection MOSI MOSI (D12) MOSI SPI Chip Select CS D7 CS Data or Command Selector D/C D8 D/C Resistive Touch Screen Y+ Y+ A3 Y+ Resistive Touch Screen Y- Y- TX Y- Resistive Touch Screen X+ X+ RX X+ Resistive Touch Screen X- X- A4 X-