Workshop: Assembling the Tinusaur Kit in Varna, Bulgaria

This Saturday, September 2nd, we will have one day workshop for assembling the Tinusaur kits for those who supported our Indiegogo crowdfunding campaign. It will take place in Varna, Bulgaria, our host will be VarnaLab – the local hackerspace. We will learn the basics of electronic components, microcontrollers – ATtiny85 in particular and, of course, […]

via Workshop: Assembling the Tinusaur Kit in Varna, Bulgaria — The Tinusaur Project

Workshop: Assembling the Tinusaur Kit in Varna, Bulgaria

Battman Battery Management System

From Raphael Chang:

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Battman Battery Management System

As part of the fully custom electric longboard I am building, I designed a battery management system (BMS) for a 12 cell lithium ion battery pack. The BMS, named “Battman”, is meant to monitor both Lithium Polymer cells (LiPo) and Lithium Iron Phosphate cells (LiFePo4), and it can protect the batteries against undervoltage, overvoltage, overcurrent, and overtemperature.

It also has an integrated charging circuit that can perform constant current/constant voltage charging of the cells up to 6A, while performing balancing of the cells at 100mA. In addition, it functions as the main power switch of the longboard system, and includes a precharge circuit to limit inrush currents. Finally, the BMS does current measurements for coulomb counting, and performs state-of-charge calculations.

The project is shared in these GitHub repos:

Andrius has shared the board on OSH Park:

Battman lithium ion battery management system

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Order from OSH Park

Battman Battery Management System

Making A Pickit 3 Clone

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Making A Pickit 3 Clone

After using the Microchip tools to program and debug the projects I work on, I wondered about creating my own programming/debugging module that I could put on my own boards – just like Microchip does with their starter kits and such.

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I decided to use the open-source EDA program Kicad to design a 4 layer SMD project. I had only used it for 2 layer PTH designs previously, but wanted to see how it would do in something a little more complex than the ones I had already done. Here is a link to the completed Kicad project files

Sybex23 has shared the board on OSH Park:

PICKIT 3 Programmer

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Order from OSH Park

Making A Pickit 3 Clone

Hackaday Prize Entry: MappyDot, a Micro Smart LiDAR Sensor

UPDATE: now available for sale on the Tindie

[Blecky]’s entry to the Hackaday Prize is MappyDot, a tiny board less than a square inch in size that holds a VL53L0X time-of-flight distance sensor and can measure distances of up to 2 meters. MappyDot is more than just a breakout board; the ATMega328PB microcontroller on each PCB provides filtering, an easy to use I2C interface,…

via Hackaday Prize Entry: MappyDot, a Micro Smart LiDAR Sensor

Hackaday Prize Entry: MappyDot, a Micro Smart LiDAR Sensor