Introduction My new bicycle is special, so special, that normal mudguard systems do not fit or, at best, are keeping only half of the dirt away from me. So I decided to make my own mudguard system .. the „Bike Shield“. Hand drawing Before I set of to design my […]

3D print job: a new modular mudguard system for my ...

Electric Guru: noise 12
Its pretty interesting to measure ones heart beat. A lot of fancy analog circuitry is needed for this. But fortunately there is a Arduino shield for this: the SHIELD-EKG-EMG from Olimex. Hardware: – EKG/EMG shield (price: ~24€), Manual: [Link] -SHIELD-EKG-EMG-PA – passive electrode for SHIELD-EKG-EMG shield (price: ~12€) -Olimexino-328 – […]

ECG: measure your heartbeat

Introduction During the last weeks I upgraded my solar-usb-charger system. Here you can find the original design: (german article). What the old design basically did was converting the 12V DC from the solar powered battery system to USB friendly 5V DC. New Features I added a couple of features: […]

Upgrade: Solar-USB-Charger