Repairing a broken AirPort Express

How to fix an AirPort Express Base Station that does not power up. I added a 5V power adapter and a 3.3V LDO instead of the broken power unit.

Description Fix an Apple AirPort Express Base Station that does not power up. Steps Open device Try to find problem Cheat Close device Development A friend of mine had an airport express that had stopped to work. He bought a … Continue reading Continue reading

Homemade iPad augmented reality cars

How to build an AppMATes compatible cars from PEZ dispensers using: • PEZ dispenser (cars2 edition), • Knife, sandpaper, • Quick glue, • Double sided adhesive, • Conductive foam, • Conductive film, • Conductive glue

Description How to build AppMATes compatible cars from PEZ dispensers Materials PEZ dispenser (cars2 edition) Knife, sandpaper Quick glue Double sided adhesive Conductive foam Conductive film Conductive glue Development Like many other kids, my son enjoys the Cars movies. He … Continue reading Continue reading

Web controlled home automation

livingHow to build a web controlled home automation center. This post describes the software used with the miniature router (OpenWrt), the PIC 16F628 lab board, the serial communication and radio protocol.

Description This post is the last of three and describes the software needed to build a web controlled home automation center. The previous two describes how to add a serial interface to a router and how to build a microprocessor … Continue reading Continue reading

Web access lab board (internet of things)

Lab board to connect almost anything to the web. This low cost solution uses a 3$ PIC16F628 microprocessor and a 15$ OpenWRT router. Bring your projects online today!

Description Lab board to connect almost anything to the web. This low cost solution uses a 3$ PIC16F628 microprocessor and a 15$ OpenWRT router. 15$ TP-Link WR703N router Features 6 wire terminals for I/O and power/ gnd IR receiver 2 … Continue reading Continue reading

Access serial communication on a mini router (no extra connector)

usbserialYou don't need to cut a hole in your router to mount an extra connector for serial communication. Use the existing micro USB conector instead! (This example uses a TP-link WR703N running OpenWRT)

Description Adding serial communication on existing micro USB power connector on a TP-link WR703N running OpenWRT. WR703N: Low cost, looks good and runs Linux (you should get one : ) Development A friend recently bought me a TP-Link WR703N in … Continue reading Continue reading

Using a Sony Ericsson dock as an USB2Serial adapter

Getting serial connection (5v RS232) from a USB SEMC DSS-20 SyncStation. Guide for: Disassembly, Attaching serial communication cables, Remove serial EEPROM to avoid custom drivers for the FTDI232 chip.

Description Getting serial connection (5v RS232) from a USB SEMC DSS-20 SyncStation Features Disassembly Attaching serial communication cables Remove serial EEPROM to avoid custom drivers Stripping down the PCB for minimal size Development During my time as concept creator at … Continue reading Continue reading

Lego compatible Android minifigure

3D printed Android mini figure with: • Moveable arms, hands, legs and head • LEGO compatible • Miniature legs

Description 3D printed Android mini figure Features Moveable arms, hands, legs and head LEGO compatible Miniature legs Development Since I develop mobile phones, I thought it would be cute to have an Android as a minifig. I already had the … Continue reading Continue reading

Accelerometer and digital compass (BGA & LGA) breakout board

Lab board for low cost 3-axis accelerometer and 3-axis digital compass from mobile phone. I created two versions; one breakout board and one with integrated microprocessor and LDO.

Description Lab board for 3-axis accelerometer and 3-axis digital compass from mobile phone. Features – accelerometer and compass breakout board Breakout connector for important signals Flip chip connection for BGA and LGA components Single sided PCB Features – microprocessor lab … Continue reading Continue reading

Low cost Light box

A foldable light box from a laundry basket and halogen work light Features: • Low cost • Easy to build • Easy to store (foldable)

Description A foldable light box from a laundry basket and halogen work light Features Low cost Easy to build Easy to store (foldable) Uses halogen work light and foldable laundry bag Development I needed to take some nice photos for … Continue reading Continue reading

8 PIC programming adapters

Eight different programming adapters for PIC microprocessors Features: • PICKIT compatible ICSP connector • Easy to build (single sided PCB) • Supports different microprocessors • Both through hole and SMD versions • Perfect when you don't have ICSP (breadboard, quick hacks or miniature builds)

Description Several programming adapters for PIC microprocessors Features PICKIT compatible pin spacing Easy to build (even at home – single sided PCB) Several versions to support different microprocessors Both through hole and SMD versions Perfect for breadboard, quick hacks or … Continue reading Continue reading