Relay control board on DP5031 PCB

Tom writes: Here’s a breakout board for those Songle SRD series relays that are so cheap on Ebay. It fits nicely on the Dangerous Prototypes standard PCB size DP5031. Electromechanical relays are generally employ small signals to switch much higher voltages and currents. As a result, a nice big gap is required to insulate between […]

BlueFlyVario with the Sick of Beige DP5031 case

Alistair Dickie shows off his BlueFlyVario in a Sick of Beige DP5031 translucent blue custom case: The BlueFlyVario is a flight instrument for measuring vertical speed and altitude based on atmospheric pressure. It consists of a simple hardware device that measures the atmospheric pressure 50 times every second, with a resolution that enables the measurement […]