Quantifying cooling system
Test/Measurements

Quantifying cooling system

Chris Palmer has built this coolometer project to measure the cooling effectiveness of various fan: I was wondering about how I was going to calibrate the airflow reading but then realised that the flow rate is not actually what I am interested in. It is the cooling effect the...

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4.325
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Smart Battery Charger
Arduino

Smart Battery Charger

gfwilliams @ instructables.com has build a smart battery charger that is able to individually charge each battery , automatically discharge them and give you an idea of their capacity. The charger is controlled by an Espruino Pico and results are displayed on a Nokia 5110 LCD...

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6.262
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Quick Arduino Hygrometer with OLED display
Arduino

Quick Arduino Hygrometer with OLED display

jazzycamel @ instructables.com has published an Arduino based Hydrometer with OLED display. It uses an Arduino Leonardo Pro Micro, an Adafruit SSD1306 OLED display and DHT11 digital temperature and humidity sensor. We have been having some condensation and mould issues in our...

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8.944
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1 Comments
Starling – WiFi enabled LED Display
Led

Starling – WiFi enabled LED Display

Starling is a modular, Open Source LED display with WiFi connectivity. It comes with a mobile app for easy configuration and usage and has hardware support for Bluetooth. The LED matrix is driven by an Atmega8 microcontroller (MCU), instead of a standard ASIC. This provides a lot of...

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8.303
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OpenSource Arduino OLED Clock with temperature measurement
ArduinoTimer

OpenSource Arduino OLED Clock with temperature measurement

Konstantin Dimitrov has published his Arduino OLED clock which uses DS1307 real time clock module and TMP102 temperature sensor that communicate through I2C. This clock will not only show you exact time and date but also it will show you the ambient temperature in both Fahrenheit...

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10.072
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Wi-Fi and OLED Upgrade for MightyOhm Geiger Counter
Test/Measurements

Wi-Fi and OLED Upgrade for MightyOhm Geiger Counter

Dan Watson @ syncchannel.blogspot.com wanted to have more fun with his MightyOhm Geiger Counter so decided to add an OLED display and Wifi capability to it. To achieve that he modified the counter, added a Feather HUZZAH ESP8266 with OLED FeatherWing and wrote some code. The process...

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7.446
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How to use the 4.3′ E-Paper display with Arduino
Arduino

How to use the 4.3′ E-Paper display with Arduino

educ8s.tv has uploaded another tutorial on how to use a e-paper display with Arduino. Source code is provided. Electronic paper and e-paper are display technologies that mimic the appearance of ordinary ink on paper. Unlike conventional backlit flat panel displays that emit light,...

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7.680
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LED Tester with LCD Display
Mcu

LED Tester with LCD Display

David @ robotroom.com build a microcontroller based LED tester with LCD display that shows the LED voltage, the current limit in mA, the desired led voltage and the calculated resistor value. The LED tester is based on ATtiny84 mcu which performs all the measurements and calculations...

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9.163
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