# TinyICOC - AVR In-Circuit Oscillator Calibrator
Sometimes AVRs are operated without an external clock. The internal oscillator does a good job in most applications, but when it comes to precise timing, its +/-10% accuracy is often insufficient. Fortunately, the oscillator can be calibrated, increasing its accuracy to +/-2% or better. There are a few ways to perform this manual calibration, but s...
EN - This is a digital servo tester using a simple Attiny44 chip.
Code can be downloaded from [https://bit.ly/3vDNJo2](https://bit.ly/3vDNJo2)
(Also need software servo library found here https://playground.arduino.cc/ComponentLib/Servo/ and to program from Arduino need these boards https://github.com/SpenceKonde/ATTinyCore/blob/master/Installation.md)
more in this video https://youtu.be/8KIR4aokr...
TinyTerminal is a simple USB controlled 128x64 pixels I2C OLED display. It uses [V-USB](https://www.obdev.at/products/vusb/index.html) to build a [USB communication device class (CDC)](https://en.wikipedia.org/wiki/USB_communications_device_class) for serial communication via USB with the ATtiny. Text messages of all kinds can be sent via the USB interface and shown on the OLED display. The integr...
This board utilize an ATTINY85 chip to control a servo motor using Serial Command, featuring a MOSFET for switching on/off the servo motor, an AMS1117 3.3 regulator to provide power for the ATTINY85chip and a status LED. Program not included. You have to use Software Serial on Port 3 and 4.
Recommend Serial Command: M-Command
CD Changer Emulator for Nissan Maxima, Pathfinder and Infinity I30. Allows to play mp3 and wav files from USB stick and micro SD card. Pretends to be cd changer to head unit, therefore all head unit and steering wheel controls supported. Based on DFPlayer Mini board and ATTiny85.
Source code available at [github](https://github.com/CppBaddy/Nissan-CD-Changer-Emulator)
# Watering System #
This is a simple watering system based on ATTinyX5 MCU.
Note: this project is intended to be powered by a 3xAA battery pack and a CR2032. The MOSFETs used in this project might not be able to dissipate power from voltage-stabilized source - this case was not tested.
The components are
- Control board (this project)
- 3V-6V powered DC motor water pump with flyback diode
Compact speedometer with OLED display and temperature measurement.
It features an ATtiny85 uC with USB programming and battery charging and protection circuitry. I will be using it to measure the speed of my bicycle and determine the temperature around me on my rides.
The project consists of 2 pcbs: the sensor that will be mounted on the wheel of my bike and the actual speedometer.
What if multiple lamp groups need to be controlled in an existing single lamp group (Multiway switching circuit) situation.? The cabling (1 line – hot - wire and two - nonhot - wires) between switch(es) and the lamp group is existent, buit-in walls and/or ceilings in most cases and this cabling is not possible to be modified or extended.
This circuit offers a safe and flexible possibility to co...
Uses 328PU to turn off light or turn on as needed, Using much software. But it has micro wave detection, pir detection, audio detection, and light detection.
A compact USB powered audio player module with up 32GB capacity using removable Micro SD cards. Quickly update audio content using drag and drop interface, since the module acts like an external USB drive when connected to a computer. Available in two different models, photoresistor or button switch, to control audio play.
Display-Module created and developed for Eurorack-Synth-Modules.
Digit height: 5.03mm !
Module size (w x h): 20.7mm x 22.86mm
For following controllers:
Example code using Attiny84: