PinJig – Make Soldering Easy


PinJig™ is a time saving tool for rapidly assembling electronics that makes soldering easy. It is a tool for makers that can clamp every single thru-hole component in one easy sequence.

Who is this product for – PinJig can be used by fellow makers, low volume manufacturers, DIY audio electronics enthusiasts, education users and  private company prototyping.

The product has a number of 3D Printable accessories and also supports many accessories from makeblock, makerbeam and openbeam due to its innovative modular mounting system.

PinJig – Make Soldering Easy – [Link]

Using USB Type-C on hobbyist projects


Tyler has build a breakout board for Type-C USB plug and explains how this can be used in various DIY projects.

The new Type-C USB connector is the latest addition to the USB connector standards. It offers reversible plugs, direction independent cables, USB3.1 speeds, and 3A charging in a connector only a little bigger than the USB 2.0 MicroB connector. In order to add these capabilities the plugs and connectors have additional configuration pins to allow devices to negotiate their state. Supporting the configuration channel may seem like a difficult challenge but it can be achieved fairly simply for the basic use cases.

Using USB Type-C on hobbyist projects – [Link]


Arduino Load Cell / Scale


This is a turorial on how to create a programmable scale for weighing objects, parts counting, even directing product flow on a conveyor system.  Parts used are a load cell, an Arduino, and an INA125P amplifier.

Arduino Load Cell / Scale – [Link]

USBuddy: USB development tool


Jakub has designed and built a USB breakout board with current monitor – USBuddy:

Do you sometimes develop with USB? I do. So I need to access data lines, bus voltage and I’d like to easily monitor the current too. I made myself a small companion (43.5 mm × 22.5 mm, 9.5 g) to do that. Just a simple breakout board with one connector in and one out. And a little extra to make things easier. I call it USBuddy.

USBuddy: USB development tool – [Link]

Getting Started with OPENOCD Using FT2232H Adapter for SWD Debugging


Yahya tipped us with his latest tutorial about flashing EFM32 MCUs with OpenOCD using FT2232H adapter.

Old MCUs from vendors like ATMEL and MICROCHIP, like the PIC16F and Atmega family, tend to have a special programming interface to program internal flash. For example, Atmega used SPI pins (MISO, MOSI, SCK) and PIC used two pins (PGC, PGD)— one as a clock and another as a bi-directional data line. New MCUs, especially with an ARM core, use JTAG/SWD as a programming/debugging interface.

Getting Started with OPENOCD Using FT2232H Adapter for SWD Debugging – [Link]

A Smart Night Lamp for Kids


A Smart Night Lamp for kids. Tutorial and source code available:

Few weeks ago I heard my nephew (aged 7) complaining of the dark at night. Basically he was afraid. So I decided to put knowledge into practice and build a night lamp for kids. Since the project was intended for kids, I thought of making the lamp change color every now and then. It should also be sensitive to light so that if the room is well lit, the lamp would remain off.

A Smart Night Lamp for Kids – [Link]

3.5″ Color TFT display ILI9481 on Arduino Uno and Mega

In this video we learn how to drive the new, low cost big, 3.5″ Color TFT display for Arduino Uno and Mega.

A few weeks ago, I discovered this promising new display on and thought that it might be useful in some of our projects. The price of the display is very low for such a big display, it costs 10$ and was kind enough to send me a sample unit in order to test it and share my opinion about it with you.

3.5″ Color TFT display ILI9481 on Arduino Uno and Mega – [Link]

4 Wire Resistance Measurement – Kelvin connection

This video describes and demonstrates the 4-wire resistance measurement (Kelvin connection) – what it is, and when & why it is used for making low valued resistance measurements.

4 Wire Resistance Measurement – Kelvin connection – [Link]

Arduino Countdown Timer

FP6CQL1IOEBCLE1.MEDIUM shows us how to build a 2-digit countdown timer using Arduino.

In this Instructables guide I will show you how to make your own Arduino two digit countdown timer. I made my own circuit by using the ATmega328 micro controller but this is an optional step. In this guide I will help you to make it easily on breadboard by using the Arduino uno board!

Arduino Countdown Timer – [Link]

Building a PIN Diode Geiger Counter


“Kai” is in the process of building a Geiger counter based on BPW34 photodiode and explains his first step for the sensor circuit.

The common approach to protect the photodiodes from light is to use one layer of tin foil and connect it to ground. This should also protect the circuit against electromagnetic radiation. I’ve started with something different and dipped the diodes three times into liquid rubber (Plasti Dip). My hope was to at least allow some beta particles to reach the semiconductor material.

Building a PIN Diode Geiger Counter – [Link]