Breckland Bricks
British Rail Class A4
British Rail Class A4 "Union of South Africa" 60009 with synchronised sounds.
Controlled by an ESP32 which connects to a Lego PU remote. The ESP32 controls motor and sound.
It is powered by a 3S Lipo and 2 L motors (1 PF and 1PU) drive the XXL Disc wheels with a 1:1.8 drive ratio.
The exhaust sound is relative to wheel position - it is measured by the ESP32 using the rotary encoder in the PU L Motor. There is a speaker mounted in the smoke box.
Sounds include, exhaust, injectors, whistle, cylinder cocks, coal shoveling and safety valve. The ESP32 simulates water, steam and coal usage to determine when to play sounds.
Decals are O gauge from Fox Transfers.
British Rail Class A4
British Rail Class A4 "Union of South Africa" 60009 with synchronised sounds.
Controlled by an ESP32 which connects to a Lego PU remote. The ESP32 controls motor and sound.
It is powered by a 3S Lipo and 2 L motors (1 PF and 1PU) drive the XXL Disc wheels with a 1:1.8 drive ratio.
The exhaust sound is relative to wheel position - it is measured by the ESP32 using the rotary encoder in the PU L Motor. There is a speaker mounted in the smoke box.
Sounds include, exhaust, injectors, whistle, cylinder cocks, coal shoveling and safety valve. The ESP32 simulates water, steam and coal usage to determine when to play sounds.
Decals are O gauge from Fox Transfers.