Idea: nrf24l01 transceivers for radio control telemetry
Inspiration from iforce2d (https://www.youtube.com/user/iforce2d) led me to add acknowledgement packet payloads to my wearable project. This is in preparation for…
Postbag: #27 – led/switch pcb, esp8266 modules, banggood quad
TM1638 Key Display Module 1pc 8-Bit Digital LED Tube 8-Bit For AVR Arduino New http://www.ebay.co.uk/itm/-/350964268396 http://www.mjoldfield.com/atelier/2012/08/pi-tm1638.html ESP8266 Serial
Postbag: #26 – 74hc595 pcb, 30v lcd meter, qi usb charger
What's in today's postbag? PCB:: Quad Shift Register Breakout Board / 74HC595 / Microcontollers / etc. http://www.ebay.co.uk/itm/-/261634186903 New 2-wire DC…
Teardown: turnigy accucell-8150 150w 7a balance charger
A look inside this Hobbyking supplied 8S balance charger. From what Hobbyking are saying about fakes, this unit looks like…
Led tutorial: plotting the iv curve for a 10w led
I wanted an accurate plot (on graph paper) of the relationship between voltage and current for a 10W high power…
Tutorial: dc/dc buck converter voltage and current regulation
How a DC/DC converter handles the relationship between voltage and current regulation. Check out B3008 6~32V / 0~30V LED Display…
Repair: hubsan x4 quadcopter usb charge cable plug
An impromptu repair on the USB plug of my Hubsan X4 quadcopter charge cable. Turned out to be a simpler…
Project: 20-position rotary switch #2 – polling missed pulses
Using an Arduino Nano to read a 20-step rotary encoder switch.
Postbag: #25 banggood special
A package of goodies from Banggood.com: http://www.banggood.com/Solar-Power-6-LED-PIR-Motion-Sensor-Light-Outdoor-Garden-Entrance-Lamp-p-936521.html?utm_source=youtube&utm_medium=youtube_direct&utm_c
Playing with flashing lights – bc109, 555 or microcontroller?
What more fun could you have on a Sunday afternoon than messing about with electronic flashing lights? I'm playing with…