LCD 16×2 Interface with Raspberry Pi
Raspberry Pi

LCD 16×2 Interface with Raspberry Pi

shubhamtrivedi95 @ instructables.com shows how to interface a 16x2 LCD display on Raspberry Pi. Sample code is provided. LCD 16x2 Interface with Raspberry Pi -...

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Arduino + Thermocouple + Nokia 5110 LCD
Arduino

Arduino + Thermocouple + Nokia 5110 LCD

abhyu1112 @ instructables.com provides code for thermocouple interface to Arduino and Nokia 5110 LCD display. This is a connection between arduino mega thermocouple and Nokia 5110 screen to display temperature which ranges till 1000*C. It can be used to measure temperature of...

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TritiLED – Multi-year always-on LED
Mcu

TritiLED – Multi-year always-on LED

Ted Yapo has designed a multi-year always-on LED replacements for gaseous tritium light sources. TritiLEDs are always-on battery powered LED glow lights for general night-time marking use. Radioactive gaseous tritium light sources (GTLSs) are allowed in the United States in several...

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Factory programming ESP8266 gadgets
Mcu

Factory programming ESP8266 gadgets

Johan Kanflo’s Esprog pogo pin connector: The FTDI connector can be found on just about any ESP8266 design. If you are building a gadget to be deployed somewhere and not a full blown development board, the FTDI connector is somewhat overkill. And it is quite large. A few pins...

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ESP8266 based plane spotter
Mcu

ESP8266 based plane spotter

A how-to on building an ESP8266 based plane spotter from Daniel Eichorn: In order to get this project running you’ll need the following list of hardware: NodeMCU ESP8266 module or Wemos D1 Mini 0.96″ SSD1306 OLED display A few connectors and USB Wire Or order a...

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850nm infrared LED outputs 770mW at 1A
Led

850nm infrared LED outputs 770mW at 1A

by Julien Happich@ edn-europe.com Designed for infrared illumination for cameras, surveillance systems or machine vision, the Oslon Black SFH 4715A infrared emitting diode (IRED) boasts a low thermal resistance of maximum 11K/W, delivering a 850nm beam with an optical output of 770mW...

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Heat Activated Cooling Fan Controller
Sensor

Heat Activated Cooling Fan Controller

Heat activated cooling fan controller is a simple project which operates a brushless fan when the temperature in a particular area goes above a set point, when temperature return normal, fan automatically turns off. The project is built using LM358 Op-amp and LM35 temperature Sensor....

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Limiting Inrush Current
Basic Electronics

Limiting Inrush Current

aimtec.com has a basic article on how to limit inrush current using passive components. Inrush current or input surge current refers to the maximum, instantaneous input current drawn by an electrical device during its initial turn on. Power converters also feature high inrush...

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