Components Required: Mercury Switch/ Tilt SensorArduino UNOBuzzerLEDResistor - 220 ohmBreadboardConnecting wires Schematic: Connecting the circuit: To connect a Tilt sensor with the Arduino, it requires 5v dc input to operate. That 5v is supplied using...
The hardware is quite simple - it's a microcontroller connected to a piezoelectric speaker and a battery. In this case, the controller is the ATTiny9, which comes as a SOT23-6. It's connected to a 12MM coin cell battery bail and a 12.5mm piezo element....
I've created a fairly detailed bill of materials that details everything you'll need. You'll also need to solder some unique USB cables together. See the pictures.The power supply board turns on when the power button is pressed, and stays on for a bout...
Keyboard with color keys.... consists of two 74hc595 and one atmega8. Firmware does keyboard scan and acts as an SPI slave to the Raspberry Pi. Commands are 1 byte long are used to report state of the keyboard, four keys per time.Userspace keyboard driver...
Putting things together was straight forward. I took the code from Adafruit: Multi-tasking the arduino part 2 which I modified for 1 servo and 1 LED only. Moreover, since I use an ATtiny85, I had to call the SoftServo library instead of the normal servo...
The Flea-Scope User's Guide (including some "how it works" internals and full specifications) is here: https://rtestardi.github.io/usbte/flea-scope.pdf A preliminary video introduction is here. BTW, I just got assembled boards back from pcbway.com...
The core is a board with integrated power supply and breadboard, which offers besides a slot for the microcontroller board also another slot for an expansion board - so called Featherwings. Of course, additional featherwings can be plugged onto the microcontroller...
Hardware The watch is pretty standard as far as 6502 hardware goes: 65c02 running @ 8MHz65c22 (controls LCD, keyboard, and buttons)Nokia 5110 LCD (84x48)32k SRAM16k ROMC64 Keyboard Connector Probably the strangest bit there is the full size C64 keyboard...
Project goals:* make a keyboard which is sufficiently thin to fit inside steamdeck official case* experiment with making flex PCBs using copper tape and a vinyl cutter (both as cheap flex PCBs and rapid PCB prototyping in general) Keyboard stackup:*...
There it is - we are live on Kickstarterexactly as planned the campaign launched a few minutes ago. Make sure to grab your board as long as the early birds are available.https://www.kickstarter.com/projects/pascalwistinghausen/sigmoid-s7p-closing-the-gap-in-3d-printer-controlIt´s...
(This project is 6 years old. I want to revise it to take out the pot and use panel mount through hole right angle components. That way everything can just be mounted on a PCB. Then if I replace the face plates with PCBs I should have a really quick...
After acquiring the correct BIOS from the Asus website, I put it on a FAT16 formatted USB stick and entered the BIOS screen. I've never used EasyFlash but the name made it sound seamless and well, easy! The USB stick was easy to find and I had already...
GitHub:https://github.com/jvshens/Arduino-Projector-ControlsDETAILS:This is an Arduino Uno with an attached SparkFun RS232 shield that detects button inputs and sends the corresponding string to the projector over an ethernet / serial conversion (RS232).The...
Power I 'upcycled' a portable battery bank that you can buy almost anywhere for just a few dollars. These little banks almost always have the same kind of standard Li-Ion 3.7 volt batteries inside. They are reliable and easy to work with (Li-Poly battery...
You can spend a lot of time completely lost on internet as I did, by just googling ‘led candle’ or ‘flickering led’ or ‘micro controller candle’ etc… I’ve found a nice Tim’s blog post about the reverse engineering of a flickering led....