Anthrophex – Controller board 2

After the faults with controller board 1, I wanted to respin another controller board ASAP. These boards arrived yesterday and with a swift order from RS, so did a load of components! On the previous board, I was using a large STM32 device with many pins and driving the motors directly through level shifter chips. […]

The H Trike – Part 2

Having completed the frame, I need to design a handheld controller, suitable for controlling the trike. I’ve decided to use an Xbox style joystick as these are easily available and the Adafruit Eagle library already had them, saving me redesigning the package! I intend to make myself a dual motor controller on a single board […]

STM32F0 Mini tutorial – Using the I2C peripheral to communicate with a HMC5883L digital compass IC

Well! I’ve had a fair few requests in the past few weeks about how I got the HMC5883L digital compass IC working with my STM32F0 discovery board (as shown in a previous post:¬†https://hsel.co.uk/2014/05/29/hmc5883l-magnetometer/). I’m really not a fan of the I2C implementation on the STM32F0 discovery board as many things don’t seem particularly apparent at […]