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DIY battery tab resistance fine-spot welder
Digital kitchen weighing scale interface for Arduino
Well, I used a relay anyways and it works. Its a simple relay module for the arduino and it costs $1. You can modulate it to control the current too.
A word of advise. Order his ATmega328 with his software already loaded on it. I just spent almost two day's getting a blank, $3 ATmega328-PU loaded with the required software. If you a fairly competent with Arduino, you might bet a blank chip setup. If you are not good with Arduino, you definitely want to order his unless you are planning on using the Arduino UNO and just build the power supply section. Even then, just getting all the software required loaded into the Arduino board is a royal pain. Definitely not worth the few dollars you might save. Understand also, some of those cheap, fake boards out of China don't have the bootloader in them and may cause you problems.
SAM 15x15 Arduino compatible development board 15x15mm with SAMD21G18
For purchase see http://www.avdweb.nl/arduino/samd21/sam-15x15.html
You can order the SAM 15x15 here:http://www.avdweb.nl/arduino/samd21/sam-15x15.html
Looks interesting, I wasn't aware of this before now. Where can these be purchased from, and what's the cost like? Thanks for sharing!
DIY simple solder paste micro-dot dispenser
No, thyristors, see the articlehttp://www.avdweb.nl/arduino/hardware-interfacing/spot-welder-controller.html
Can I use an arduino with a relay?
Does current flow through the u-shaped welding arms or are the wire and electrodes isolated/insulated from them? I was thinking of using wood for the welding arms.
how did you measurement current? I want how to do that
Nice work avandalen ! - I would like to discuss a product proposal with you. Can you modify this scale to weigh max value of 75 kgs, and give a relative % value display against this max value ie all values on the display will be <= 100% ? my email is email@example.com
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