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Simple IOTA price ticker by using TTGO-TS_1.8 TFT and CoinMarketcap API for Arduino IDE
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README.md

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Simple IOTA price ticker by using ESP32 based TTGO-TS_1.8 TFT and CoinMarketcap API for the Arduino IDE platform
IOTA ticker on Youtube: https://www.youtube.com/watch?v=napduhMtkBk&t=94s


Index of this project



Add ESP32 in Arduino IDE

Before we can start compiling, the Arduino must have the TTGO-TS board, based on an ESP32 in the board selection available. The instruction on https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions/ In board selector you can select "ESP32 Dev Module" for TTGO-TS.

Libraries for Arduino IDE

Now we add libraries for Arduino IDE:

Adafruit_GFX.h

CoinMarketCapApi.h

Adafruit_ST7735.h
(see "Screen shifting Issue" Adafruit_ST7735_and_ST7789_Library-TS18 if you have Screen shifting)

ArduinoJson.h
(please use version from "Aruinojson by Benholt Blanchon Version 5.13.4")

If you are have problem with the "wifi.h" delete the arduino/libraries/wiFi directory, you can use the esp32 WiFi.h


Screen shifting Issue

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if the display does not fit pixel mapping (see picture) Just use the libary "Adafruit_ST7735_and_ST7789_Library-TS18" provided here and replace it.

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This is a modification of the Adafruit_ST7735.h change the register 0x3 to 0x0, That's all.


Additional information

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An SPI display is not the fastest to build the pixels, to make this faster, filled first only the colored marked fields with black and then built up with the new numbers.


If you like my work, you can give me a tip for a beer :)
IOTA Donate address: CIMRZOWYFUGYRFUGBJRBDIILCUBNCNNBMYCJDFVJN9HRCNXQAPFRMHUI9KOQCQGXTZIKFFBJLRUJUUZPYEAZEWOXAX

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