Giveaway: TraId kits – Transistor type & pinout identifier

Mats has amazed us with his board a week projects, and now one of them could be yours!  Today Mats is giving away three TraId kits – Transistor type & pinout identifier.  All parts included except for a CR2032 battery that needs to be sourced locally due to postage regulations: TraId is a really low cost […]

PCB a Week 22: TraId – Transistor type & pinout identifier

Mats continues his challenge of designing one PCB every week. In week 22 he came up with TraId – Transistor type & pinout identifier: TraId is a really low cost version of the Part Ninja. It’s made to only identify the pinout and type (NPN/PNP) of a transistor and display the results on eight LEDs. […]

Giveaway: Three prebuilt LEDger Led (polarity) tester

Mats has amazed us with his board a week projects, and now one of them could be yours!  Today Mats is giving away three prebuilt LEDger.  It’s a simple but useful LED tester: He’ll give these away to 3 random commenters, just leave a comment on this post. For more information visit the project’s Tindie […]

PCB a Week 19: SD Card Breakout for breadboards

Mats continues his challenge of designing one PCB every week.  In week 19  he came up with breakout board for micro SD cards: This weeks PAW is just a breakout board for micro SD cards. There’s a number of boards like this on the market already, but they are kinda expensive and I like doing […]

Giveaway: Three “BB Prince” kits

Mats has amazed us with his board a week projects, and now one of them could be yours!  Today Mats is giving away three “BB Prince” kits.  It’s a small utility board for your breadboard that have some of the most common things you need when building a microcontroller-based project on the breadboard. He’ll give these […]

PCB a Week 12: BB Prince – breadboard utility PCB

Mats continues his challenge of designing one PCB every week.  In week 12 he came up with BB Prince, a small multi-purpose utility for your solderless breadboard: This PAW is a small utility board for your breadboard that have some of the most common things you need when building a microcontroller-based project on the breadboard. […]

PCB a Week 9: MrRef voltage and current reference update

Mats posted pictures of his MrRef voltage and current reference PCB build.  This tool helps check the accuracy of your multimeter: Since my Agilent 34401 is currently out of calibration I didn’t bother installing the fine-adjustment trimopot. The 6350 is good for 0.02% (1mV) without any adjustments. But I installed two 10K 0.05% resistors on the […]

PCB a Week 9: MrRef voltage and current reference

Mats continues his challenge of designing one PCB every week. This tool helps check the accuracy of your multimeter: The design might be interesting anyways since it has remote sensing for compensating for voltage drop in the cables. But if your meter is drawing enough current to cause more than a 1 mV drop you […]

PCB a Week 8: NU-FitHole hole size helper

Mats continues his challenge of designing one PCB every week.  This tool helps to determine exact hole dimensions for screws and other parts. This weeks PAW will be extremely simple – it’s not even a breakout board, but it might still come in handy for people making PCBs. The FitHole is a tool for testing […]

PCB a Week 7: Mains log sensor

Mats continues his challenge of designing one PCB every week. In week 7 he designed a voltage and frequency logger for household mains power supply. The device is designed around the ATtiny45 microcontroller which records the frequency and voltage, and passes measurements through an onto-coupler to an isolated logging board. This week I’ll just finalize […]