Arduino nokia 5110 lcd tutorial #1 – connecting and initial programming
Detailed tutorial on connecting and programming the Nokia 5110 LCD. In this first part I'm only concerned with sending the…
Introduction to arduino compatible displays but not the 16×2 lcd
Nobody needs another 16x2 LCD Arduino tutorial, so this isn't one. Here I take a look at a few other…
Review: 400w digitally controlled dc/dc step-up boost converter
This digitally controlled boost converter makes driving high power LEDs from a 12 volt source really easy. But it has…
10w led pir floodlight upgrade – fitting a cds light dependent resistor
This neat little 12v PIR sensor has survived a year in the great outdoors, partly because it uses MOSFETs for…
Arduino mppt solar charge controller #18 – tracking algorithm works!.. sort of
I've written a first draft MPPT algorithm which sweeps the PWM value from one end of the scale to the…
Arduino mppt solar charge controller #17 – buck converter efficiency
The new voltage and current sensors on the battery side mean that Watts in and Watts out can be measured…
Arduino mppt solar charge controller #16 – testing the new board
I've completely rebuilt the MPPT controller test rig so that the Arduino has control over the PWM mark/space ratio. This…
Practical mosfet tutorial #5 – microcontroller interfacing
For this tutorial to be truly practical, we need to interface the MOSFET to a microcontroller. Here, soultions are provided…
Practical mosfet tutorial #4 – n channel, high side and bootstrapping
Can you have an N channel MOSFET in the high side of the circuit. Yes, but there are issues!
Arduino usb-to-serial tutorial – programming the pro mini
Here I attempt to use 3 different USB to Serial modules to program a clone Arduino Pro Mini. The chips…