ESP Sample Code for an EVE3 Display

FTDI/Bridgetek EVE2 & EVE3 & EVE4 SPI TFT Series by Matrix Orbital

Moderator: Mods

Post Reply
Henry
OMNIPRESENT
OMNIPRESENT
Posts: 3002
Joined: Tue Aug 14, 2001 6:00 pm
Contact:

ESP Sample Code for an EVE3 Display

Post by Henry »

Simple weather station application for an ESP using the WEMOS D1 Mini and a Matrix Orbital EVE3 4.3" SPI Display.

The display used, EVE3-43G is an oversized Capacitive touch 4.3" IPS TFT for easy mounting and clean design. The EVE3 uses the BT815 and BT816 as the graphics engine and features 32Mb on-board memory.

Source Code
https://github.com/MatrixOrbital/ESP-EVE3-Weather-Demo

Image

Image

Requirements

WEMOS D1 Mini (Most models of the ESP32/ESP8266 should work, but are untested)
A Matrix Orbital EVE3-43 display
A Matrix Orbital EVE2-SPI2BBC Breakout board
A Matrix Orbital EVE2-USB2SPI-KIT-A USB to SPI Adapter board
Henry J.
President
Matrix Orbital

Rudolph
LCD Guru
Posts: 67
Joined: Wed Feb 28, 2018 11:09 am

Re: ESP Sample Code for an EVE3 Display

Post by Rudolph »

Nice, I have a project with EVE3-43G modules currently and my cases look similar. :-)
I only wish DigiKey had EVE3-43G-IPS-BLH-TPC-Fxx but they "only" have EVE3-43G-BLM-TPC-F32.
Same goes for the other IPS versions, these are not even listed.

I do wonder about the current consumption though.
It obviously seems to work although the LDO on the WEMOS D1 Mini is a bit weak
for the ESP8266, WLAN and the EVE3-43G.

The IPS versions are a lot brighter, are these also even more efficient?
At REG_PWM_DUTY = 32 like in the project my EVE3-43G draws around 150mA.
What does the EVE3-43G-IPS need at REG_PWM_DUTY = 32 and REG_PWM_DUTY = 64?

Post Reply