Circuits & Schematics: Arduino - 7

61. Self-Calibrating USB Voltage/Current Meter
    Circuits Measurement Microcontrollers Usage Microchip ATtiny13A
    Tirdad Sadri Nejad Hackster.io With a code size of 1 KB on an ATtiny13A MCU, this tiny module measures voltages up to 22 volts and current up to 5 amps. There are a lot of so-called USB doctor modules which are used for monitoring currents flowing ...
    Mar 26, 2020

62. ATtiny85 Pulse Oximeter and Photoplethysmograph
    Circuits Arduino Measurement Medicine Microcontrollers Usage ATtiny85 SSD1306 MAX30102
    .. only 512 bytes of RAM. This means that samples from the MAX30102 sensor must be processed on the fly. Most of the existing Arduino programs read in a block of 100 or so samples and then process them. Figure 1. ATtiny85 Pulse Oximeter and ...
    Apr 15, 2020

63. 20A/40V Integrated Power Module for DC Brushless Motors (BLDC)
    Rajkumar Sharma
    Circuits Power ON Semiconductor STK984-090A
    .. works as output driver which include power stage and current sense circuitry, header connector provided to interface with Arduino or other micro-controller for PWM inputs and current feedback. Screw terminals help to connect the motor ...
    Apr 17, 2020
64. DIY Ultra Sensitive EMF Detector
    Circuits Arduino Measurement Beginners Microcontrollers Usage
    .. Pavleski Arduino.cc A simple to build, but very sensitive electromagnetic field detector. This is a simple device capable of ...
    Apr 18, 2020
65. Wireless SD Card Reader on ESP8266
    Circuits Arduino Wireless ESP8266 ESP-12E
    .. 5 SCLK 6 GND 7 DO (MISO) 8 Not used 9 Not used SD Card Adapter Modification You can use any SD card modules which support Arduino and esp8266 but for the purpose of this project, we'll use the microSD card adapter and will modify in ...
    Nov 18, 2020
66. TinyPocketRadio - FM Stereo Radio based on ATtiny13A and RDA5807MP
    Stefan Wagner
    Circuits Radio ATtiny13A RDA5807MP
    .. 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 MicroCore [3]. Go to Tools - Board - MicroCore and select ATtiny13. Go to ...
    Jul 5, 2021
67. TinyCalibrator - OSC Calibrator and High-Voltage Fuse Resetter
    Stefan Wagner
    Circuits 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 [ 2 ]. Go to Tools - Board - ATtinyCore and select ...
    Aug 4, 2021
68. TinyCharger - Single Cell Li-Ion Battery Charger with Monitoring
    Stefan Wagner
    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 ...
    Aug 19, 2021
69. DIY Infrared Thermometer Pen
    xmorneau
    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 ...
    Sep 13, 2021
70. USB Phone Charge Guard
    Stefan Wagner
    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 ...
    Sep 21, 2021

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