Arduino on a breadboard – Martyn Currey

Bluetooth HC-05 command delay - #22 by kaiswim1 - Microcontrollers - Arduino Forum

Arduino Nano Como Programador de ISP - Espa, PDF, Arduino

Arduino With HD44780 Based Character LCDs Martyn Currey, 49% OFF

Connecting a photo interrupter/optoisolator to an Arduino – Martyn Currey

UNO and Bluetooth HC06 AT commands - Networking, Protocols, and Devices - Arduino Forum

Android Apps by Martyn Currey on Google Play

Arduino, HM-10 and App Inventor 2 - APK Download for Android

HC-05 zs-040. Some commands only work when pin 34 is HIGH - Networking, Protocols, and Devices - Arduino Forum

dropController DIY – Breadboard

Turning a LED on and off with an Arduino, a HC-06 and Android, Martyn Currey

Drop Control V0.1 – Martyn Currey

HC-05 (ZG-B23090W) Bluetooth 2.0 EDR modules, Martyn Currey