Shared Projects

Will it work? I’m pretty sure, but then again, this is built by me. Nothing works first time.

Ben Rossi Senior Project UMaine

Heated Build Plate Interface Board for MakerBot/FlashForge/CTC/QIDI/etc for third party heaters. Based on MakerBot single layer thermistor board with added heater power LED.

5V Input Adapter for the $22 SUMP2 iCEstick 96 MSPS LogicAnalyzer.

RJ45 pitch 2.54mm. Copper area on top and bottom layer.

Simple notch filter for mains. Uses “twin-T” configuration. https://www.circuitlab.com/circuit/e8gar3/60hz-notch-alt/

Basic STM32L432 80 MHz ARM Cortex M4F 32-pin QFN package breakout board prototype, 33% smaller than the Dragonfly pcb. Rearranged buttons and pin mapping. removed VDDA through hole.

Low-cost Dragonfly-lite breakout board prototype using the STM32L433CCU6 80 MHz ARM Cortex M4F 48-pin QFN package. Replaced single led with rgb led, moved 3 x 2 connector to be compatible with Dragonfly shields, added ferrite bead on VDDA.

AH3360 Breakout board

Senior Design Project

Grayhill 56 Series 10 Pos Rotary Switch Shield

https://github.com/hzeller/tmc2660-breakout

piBeacon Sensor Board Rev2

Shield for easy optiloader programming (not my work)

Not my work: http://www.instructables.com/id/Troubleshoot-your-car-battery-with-ATtiny/ simple troubleshooter for battery/alternator. Uses code: // This sketch monitors battery voltage and turns on an LED based on it. // Processor: ATtiny 13. // Author: Rafael Larios // Date: 13.09.03 // int rLED = 4; //Red LED pin int yLED = 1; //Yellow LED pin int gLED = 2; //Green LED pin int val = 0; //This variable will hold voltage input value int dlyctr = 0; //This is the delay counter. void setup(){ pinMode(rLED, OUTPUT); //Define Red LED output pinMode(yLED, OUTPUT); //ditto Yellow LED pinMode(gLED, OUTPUT); //ditto Green LED } void loop(){ val = analogRead(A3); //Read voltage through Analog input 0 if(val<446){ //Is battery voltage below 9.6V? digitalWrite(rLED, HIGH); //Yes, this is bad, turn on Red LED digitalWrite(yLED, LOW); //Turn off Yellow LED digitalWrite(gLED, LOW); //Turn off Green LED } else { if(val<586){ //Is battery voltage between 9.6V and 12.4V? digitalWrite(rLED, LOW); //This is a low voltage, turn off red LED digitalWrite(yLED, HIGH); //Turn on Yelow LED as a warning. digitalWrite(gLED, LOW); //Turn off Green LED } else { if(val<621){ //Is battery voltage between 12.4V and 13.1V? digitalWrite(rLED, LOW); //Yes, turn off Red LED digitalWrite(yLED, LOW); //Turn off Yellow LED digitalWrite(gLED, HIGH); //Turn on Green LED to indicate fully charged battery voltage. } else { dlyctr = dlyctr + 1; //increase delay counter. every pass approx. 100ms if(val<742){ //Is battery voltage above 13.1V and below 15.5V? digitalWrite(rLED, LOW); //Turn off red LED digitalWrite(yLED, LOW); //Turn off yellow LED if(dlyctr<6){ digitalWrite(gLED, HIGH); //Pulse green LED on for half a second } else { digitalWrite(gLED, LOW); //Pulse green LED off for half a second to show battery is charging. if(dlyctr>10){ dlyctr=0; //Reset delay counter } } } else //Battery voltage is above 15.5V.Danger ! Overcharge { digitalWrite(yLED, LOW); //Turn off Yellow LED digitalWrite(gLED, LOW); //Turn off Green LED if(dlyctr<6){ digitalWrite(rLED, HIGH); //Turn on Red LED for half a second. } else { digitalWrite(rLED, LOW); //Turn off Red LED for half a second. if(dlyctr>10){ dlyctr=0; //Reset delay counter } } } delay(100); //Stop program 100 milliseconds to help pulse LEDs. } } } }

http://screwdecaf.cx/BatDLX.html

Micro ISP connector for Atmel Chips this is a adapter to program the servoCPU. Use 0.8mm thick pogo-pins to connect to the board All info wil be made available at https://www.elektormagazine.com/labs