wemos d1 mini tft display manufacturer

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The WeMos D1 Mini family of boards is one of the latest additions to the ESP8266-based IoT ecosystem. The WeMos D1 Mini 1.44" TFT Display Shield includes the popular, full color, 128×128 pixel resolution display for showing text, graphics, and even animations.

The embedded TFT driver (ST7735) can display full 16-bit color. It is internally wired to the display, and can be controlled over SPI using pins (D3 for TFT_DC and D4 for TFT_CS; reset can be set to -1 on your preferred software library). This fantastic shields also breaks out the display pins onto an 8-pin header. Whereas the pins for using the board as a WeMos D1 Mini shield come pre-soldered, to control the display using the 8-pin header option you"ll need to solder the included 8-pin header, and wire it to your preferred microcontroller or single-board computer (Arduino, Raspberry Pi, etc.).

This small form factor shield is a convenient way to get a display on your project with a very small footprint. What makes the WeMos family of development boards for the ESP8266 great is the availability of stackable, plug-and-play shields such as this WeMos D1 Mini 1.44" TFT Display Shield. The WeMos family is a great solution for building projects quickly using the ESP8266 SoC.

If you want to put the D1 Mini ESP32 directly on the back of the display shield, make sure you only solder the 16 legs the D1 Mini ESP8266 has. The connector on the back of the display has the outer and inner pins 1-on-1 connected while on the ESP32 they are completely different.

I want to see If I can connect a simple TFT display to my board to view my sensor distance readings, rather than having to use the ESPHome log viewer or Home Assistant dashboard.

To keep things simple I’ve unplugged my ultrasonic sensor from my board and removed the code for it in my ESPHome config file, so that I can just test the display and the display code by itself, before trying to get my sensor readings to display.

I’ve fallen at the first hurdle and don’t know if its a problem with the GPIO pins I’ve assigned, a hardware issue with the display, or the ESPHome driver.

The first half of the display from left to right is white, however the right half of the screen is showing multicoloured ‘white noise’ - sorry , the best I can describe it!

I know that my display uses the ST7735S controller, and I am referencing the ESPHome native support for the ST7735 controller, so first thoughts, after checking my wiring/connections are ok, is this difference is causing the incompatibility?

In the previous article (“WiFi OLED Mini Weather Station with ESP8266“) I have used the OLED kit from https://blog.squix.org. And as promised, this time it is about the “ESP8266 WiFi Color Display Kit”:

I had ordered both because I thought that the Color Display kit is needs the other kit as a base. Well, it turned out that both kits work independently. My bad. Actually this is good, as I have now two independent ESP8266 weather stations :-). An addition to that, they can exchange data (e.g. temperature/humidity) with a server, so that makes them a perfect dual weather station.

This time assembling the kit needs basic soldering skills. With the excellent tutorial by Daniel Eichhorn  (https://blog.squix.org/wifi-color-display-kit) this should be a piece of cake. The only consideration is what kind of headers to use. I opted for the ‘larger but flexible’ approach. That way I can separate the boards if needed.

In order to follow the market tread, Orient Display engineers have developed several Arduino TFT LCD displays and Arduino OLED displays which are favored by hobbyists and professionals.

Although Orient Display provides many standard small size OLED, TN and IPS Arduino TFT displays, custom made solutions are provided with larger size displays or even with capacitive touch panel.