Cheap Yellow Display / ANSI-VT100 serial terminal

This mini-project sets up a Cheap Yellow Display as a ANSI-VT100 serial terminal. The terminal displays serial data from a microcontroller without the use of a PC, very convenient.

Requirements

1. An example display can be found at ESP32-2432S028. Above the USB-micro connector on the left, there is a 4-pin Rx/Tx connector thas also breaks out Vin/Gnd. The example display ships with the required cables to connect to it. Perfect.
   
2. Some kind of case. I printed this case in PLA, which has the proper opening for the Rx/Tx connector.
3. You need to replace the two small resistors right next to the Rx/Tx connector with a small piece of wire (like from a resistor, just 2mm), or a replacement 0-ohm resistor. I wasn't able to create reliable serial connections with the onboard 100Ohm! resistors; the replacements work reliably.

Usage

Using the supplied cable connected to JST connector P1 (Rx/Tx), connect

• VIN (RED cable) to a 5 volt power supply
• GND (Black cable) to common ground of the supply and your microcontroller
• RX (White cable) to the Tx PIN of your microcontroller. The RX pin is 3.3 volt, but also 5 volt tolerant.
• Set serial connection parameters on your microcontroller to 115200 baud, 8N1 (8 data bits, No parity bit, 1 stop bit)