Circuits & Schematics: Arduino

1. How to build an isolated digital AC dimmer using Arduino
   Circuits Arduino Supply NXP BT138-800
   .. (optically) with the mains voltage. So we can expect to get a noise-free signal which can be safely connected to the Arduino I/Os. The Figure 3 demonstrates the zero-crossing detector output signal (Pin-4 of the IC1). For sure you ...
   26-04-2024

2. DIY solar tracker system
   Circuits Automation Solar
   .. only if solar panels are rotated by the sun. This is the purpose of this diy solar tracker system or if you have an Arduino board then you can build this one that uses a servo. The solar tracker circuit (Figure 1) uses a window ...
   14-11-2023

3. Handheld electric PCB drill speed controller
   Circuits Tools and Technologies Microcontrollers Usage Infineon IRL520N
   .. handheld electric PCB drill speed controller is cheap, easy to build, and only uses a few components. Basically, it is an Arduino Uno based PWM controller that operates at a relatively high frequency (Figure 1). It features almost 0-100% ...
   28-09-2023
4. Precision thermocouple amplifier
   Circuits Measurement Analog Devices MAX31856
   .. operating supply of the project is 5 V and it consumes a very low current. The module communicates over the SPI interface. Arduino Interface Testing this module with Arduino is very easy. The pin configuration information is available ...
   23-12-2022
5. Microcontroller-controlled homemade Proto power supply for Arduino projects
   Circuits Supply Microcontrollers Usage Atmel ATmega328
   .. article describes a portable breadboard-friendly adjustable power supply, designed as an ideal supply for Arduino projects and other low-power circuits. It is capable of providing from 0 V to 5.5 V at up to 0.5 A, and is ...
   29-09-2022
6. Make Smallest IoT Home Automation using ESP8266-01
   Circuits Automation Wireless Microcontrollers Usage ESP8266-01
   .. One(1) 2-Channel Relay Module Figure 4. 2 Channel relay module Breadboard with some wires. Steps for the ESP8266 Setup in Arduino IDE (Ignore this step if you already have the setup for Arduino IDE.) To code the ESP8266 we need an ...
   09-08-2022
7. TinyLoad - Simple Electronic Load based on ATtiny45/85
   Circuits Measurement Microcontrollers Usage Microchip ATtiny10 Attiny13 ATtiny24 ATtiny25 ATtiny44 ATtiny45 ATtiny84 ATtiny85
   .. on the working principle of the I 2 C OLED implementation visit TinyOLEDdemo. Compiling and Uploading If using the Arduino IDE Make sure you have installed ATtinyCore [ 4 ]. Go to Tools - Board - ATtinyCore and select ...
   15-11-2021
8. USB Phone Charge Guard
   Circuits Arduino Supply Microcontrollers Usage Microchip ATtiny10 Attiny13 ATtiny24 ATtiny25 ATtiny44 ATtiny45 ATtiny84 ATtiny85
   .. using an SOP adapter, or after soldering using an EEPROM clip. The AVR Programmer Adapter can help with this. If using the Arduino IDE: Make sure you have installed ATtinyCore [ 4 ]. Go to Tools - Board - ATtinyCore and select ...
   21-09-2021
9. DIY Infrared Thermometer Pen
   Circuits Measurement Printed Circuit Boards (PCB) Microcontrollers Usage Atmel ATmega328P
   .. to a temperature by a micro-controllers. In that way, I made a PCB that integrates an Atmega 328P (same controller as the Arduino Uno/Nano) to control inputs and outputs from buttons and sensors. In its simplest expression, it's an ...
   13-09-2021
10. TinyCharger - Single Cell Li-Ion Battery Charger with Monitoring
    Circuits Supply Microcontrollers Usage Microchip ATtiny10 Attiny13 ATtiny24 ATtiny25 ATtiny44 ATtiny45 ATtiny84 ATtiny85
    .. using an SOP adapter, or after soldering using an EEPROM clip. The AVR Programmer Adapter can help with this. If using the Arduino IDE Make sure you have installed ATtinyCore [ 4 ]. Go to Tools - Board - ATtinyCore and select ...
    19-08-2021

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