DIY PICKit 3 programmer/debugger

DIY PICKit 3

Here’s a detail description from Reviahh on a DIY version of the PICKit 3 programmer/debugger. It uses all SMT components and is portable in size. This schematic is very similar to the one Hendrik used, with a couple component changes and a fix for a PNP transistor that was shown backwards on his schematic. I’ll briefly talk about the different sections that I have labeled above. First – in the upper left corner is the pic24 processor that controls this device. It is a PIC24FJ256GB106 mcu. There are the requisite capacitors and 12MHz crystal attached, as well as a programming

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Arduino Pocket Tetris

Pocket Tetris project

A portable pocket Tetris project using ATTiny85 and SSD1306 based OLED screen by dombeef. This project originally was meant as a fathers day gift for my tetris-loving father, and I felt like it should be available for others if they want to make a pretty small tetris clone. This was the smallest I could make it with a big enough battery and a thick durable 3d printed housing. I modified tetris code created by Andy Jackson to be used with 3 buttons, since his original code was made for the AttinyArcade platform that has 2 buttons.

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ESP8266 smart lamp

Voice-controlled smart lamp

In her new Instructables, BECKY STERN illustrates how to add a voice control feature  to an vintage lamp using ESP8266 and Amazon Echo/Alexa. To control the AC portion of the circuit, I’m using a Power Relay FeatherWing– just interrupt the hot lamp wire and plug the stripped ends into the Normally Open and Common screw terminals. Remember, if you don’t know AC, find someone who does to supervise. My lamp had a switch along the cord, so I just removed it and used the wire that the switch had been controlling.

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Arduino-driven display console for car

Car OBD data display console

RyanM415 built an Teensy 3.6 powered car display using an on-board diagnostics (OBD-II) adapter from Freematics and a 7″ TFT LCD from Adafruit. The display has two pages: one shows off when the car is in drive and the other for when it is in reverse gear. During driving mode, it displays the RPM, MPH, engine load percentage, battery voltage, cabin temperature, and engine coolant temperature. And in reverse mode, the Arduino IDE compatible Teensy 3.6 reads an animated bitmap image of the car and displays it along with the readings from the backup sensors.

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