AngelCare AC1100 USB charger

thingiverse

Our receiver for the AngelCare AC1100 baby monitor has a short battery life and a spare charger was £15. Being the cheapskate that I am I built this USB charger for the monitor. It uses an Adafruit microUSB breakout board, a small phone charger board which I've modified, a couple of M3x12 bolts and some paperclips to mimic the OEM charger. MicroUSB breakout board: https://www.adafruit.com/products/1833 Boost converter: http://www.banggood.com/3V-To-5V-1A-USB-Charger-DC-DC-Converter-Step-Up-Boost-Module-For-Phone-p-89326.html (these can be found cheaper on ebay without the USB socket, which would make things easier) You'll need to remove the USB socket and replace the highlighted resistor with a 13k ohm component to adjust the output voltage to 7.5V to match the oem charger. The rest of the wiring is self explanatory. Just make sure that you have about 7.5V output and that the left hand terminal is +ve. Obviously I'm not responsible if you burn down your house etc..... :P Update: 06-Feb-17 Updated to include M2.5 mounting bolts. These can be used by fitting 2x 16mm F/F M2.5 pillars and 4x 10mm M2.5 countersink bolts. Print Settings Printer: Tinyboy Rafts: Doesn't Matter Supports: No Infill: 20% is adequate