Projects

RS485 – ARDUINO AND INDUSTRIAL DISTANCE SENSOR

RS485 – ARDUINO AND INDUSTRIAL DISTANCE SENSOR

I have in my hand a distance laser sensor with high precision and speed. It is used in industrial environments for object positioning or detection applications. According to technical documents, I found it can communicate with other devices via RS485. I spent the weekend to learn it and find ways to communicate with cheap CPU

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Portable Luxmeter

Portable Luxmeter

This project is about making portable luxmeter. It can be used in schools, where children can measure different kinds of light sources.Functions: 1. measure intensity of light in lux. 2. calculate solar irradiation from lux to watts/m2 (factor 112) 3. charging battery using USB port Total cost is around 13 $ without case. Luxmeter take 15 mA, so

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MAX7219 LED Dot Matrix Assembly and Testing

MAX7219 LED Dot Matrix Assembly and Testing

A Dot-Matrix Display is a display device which contains light emitting diodes aligned in the form of matrix.This Dot matrix displays are used in applications where Symbol, Graphic, Characters, Alphabets, Numerals are need to be displayed together in static as well as Scrolling motion.Dot Matrix Display is manufactured in various dimensions like 5×7,8×8,16×8,128×16, 128×32 and 128×64 where

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Easy Very Low Power BLE in Arduino Part 3 Nano V2 Replacement Rev 3

Easy Very Low Power BLE in Arduino Part 3 – Nano V2 Replacement – Rev 3

Update: 7th April 2019 – Rev 3 of lp_BLE_TempHumidity, adds Date/Time plots, Using pfodApp V3.0.362+, and auto throttling when sending data, alongside Low Power BLE in Arduino Update: 24th March 2019 – Rev 2 of lp_BLE_TempHumidity, adds more plot options and i2c_ClearBus, adds GT832E_01 support Introduction This tutorial, A Redbear Nano V2 Replacement, is Part 3 of

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