The ATtiny84 is a truly amazing chip, not quite an Arduino, but in some ways much more powerful. This is a small project designed to show off it’s potential. All Atmel microcontrollers have their pins mapped in banks of eight, whether all eight pins are present or not. For instance the ATtiny85 is an eight […]
ATtiny84 Binary Counter, Up and Down Read More »
Theremin are those unique instruments use to make those alien show theme songs or sound effect. You may have also heard it in Star Trek, Big Bang Theory, or even a haunted house. They produced a unique sound from the electromagnetic effects between wires. Here we will duplicate a similar sound digitally using a buzzer
Make a Pocket-Size Theremin With ESP32 Read More »
Today I will show a very simple ionization chamber that can detect radioactivity. I was able to detect with it ionizing radiation from a smoke detector (Am241 isotope). Itâs also immune to electromagnetic interference (EMI) due to a good shielding. This device doesnât explicitly use any power supply. Itâs connected to a multimeter set to measure resistance,
For this part of the tutorial you will need: Usb to Mirco USB cable. Ethernet Cable. A computer. An SD card (4GB or bigger). A breadboard Female to male jumper cables or the Adafruit Assembled Pi Cobbler Breakout. 330 Ohm resistor. A bit of Electronics A voltage source is a constant is a source of electrical
Controlling an LED Read More »
Single-Stage Primary-Side-Regulation PWM Controller for PFC and Phase Cut Dimmable LED Driving The FL7734 is a highly integrated PWM controller with advanced Primary-Side-Regulation (PSR) technique to minimize components for low power LED lighting solutions. Using the innovative TRUECURRENT technology for tight constant-current control, it enables designs with constant-current (CC) tolerance of less than ±1% in
Fairchild Simplifies Dimmable LED Lighting Design Read More »
Story The Tiny TS is a credit card sized (100x65mm) fully open-sourced synthesizer with a 1-octave capacitive touch keyboard. It has Audio/CV/Gate outputs and 6 synth parameter dials. The CVâs output 1V/oct and Gate from the keyboard. With the version 1.1 firmware it now also handles CV/Gate input from a sequencer. The synthesizer parameter knobs
An open-source DIY touch synthesizer Read More »
Texas Instruments says it is making, âhigh-accuracy measurement more attainable with the first current-sense amplifier to integrate a high-precision, low-drift 2 mΩ shunt resistor,â – the device can cut calibration effort, system cost, and footprint for test and measurement, communications load monitoring, and power supplies. For highly accurate measurements over a wide temperature range, TIâs
Current-sense amp integrates precision shunt resistor, in single package Read More »
TrH Meter is a DIY microcontroller-based indoor thermometer plus hygrometer that displays temperature (F/C) and relative humidity on 4 seven segment LED displays which adjust their brightness level according to the surrounding illumination. The displays are 1 inch big, emits bright yellow color, and are readable from more than 50 ft away.
TrH Meter project kit is now available for preorder on Tindie Read More »
Los Alamitos, CA (PRWEB) October 4, 2007 Providing design engineers with worldwide means of sourcing their comprehensive range of wire bondable resistive devices, TT electronics IRC Advanced Film has franchised resistor distributor, Semi Dice as a distributor for their wire bondable product offering. Available on both silicon and ceramic substrates, IRC offers wire bondable precision
Do you currently have an Arduino and want to make it smaller for cheap? Â The Quasi-duino is for you (Italian for almost-duino). Â This makes a functional “almost” Arduino, in a very small form factor using the narcoleptic library for pico-power operations on a pico-space breadboard. Â This ‘ible will use Arduino 1.0. Â All of your Arduino
The $9 Quasi-duino (Almost-duino) Read More »
