Monthly Archives: March 2018

Touch screen examples: keypad, paint, image viewer and calculator

Some example sketches for a 2.8 TFT Shield touch screen: A numeric keypad, a basic paint program, an  image viewer and a calculator. The shield comes with an SDcard slot. The image viewer reads images from an sdcard. These examples have been tested with this screen: TFT: Ilitek-ILI9341 SPI Touch: 4-wire resistive touchscreen attached to STMPE610 … Continue reading Touch screen examples: keypad, paint, image viewer and calculator

Getting started with the ESP32 Wifi module

The ESP32 Wifi module can replace an Arduino, as it has similar properties. Just like the Arduino Nano it can be mounted on a breadboard. This allows building very compact prototype circuits: To get started, Sparkfun’s “ESP32 Thing Hookup Guide” is a good tutorial. I am not going to repeat that. If you want a … Continue reading Getting started with the ESP32 Wifi module

Connect an ESP8266 module to an Arduino Nano and control it with Blynk

We are going to build a circuit that is connected to an app build with Blynk. For this we connect an Arduino to an ESP8266 module and connect it through Wifi. This example uses an Arduino Nano, of course you may use an other type of Arduino, eg. the Uno. This guide assumes you already have … Continue reading Connect an ESP8266 module to an Arduino Nano and control it with Blynk

Getting started with Blynk

Blynk is an app with which you can control any piece of electronics you have build, eg. a circuit build with an Arduino. To get started with Blynk, you can follow the getting started guide: www.blynk.cc/getting-started then continue at step 5 of docs.blynk.cc (under getting started) to add a first Widget. The first example (BlynkBlink) builds … Continue reading Getting started with Blynk