Last Updated on March 12, 2014 by admin in 8051 projects with 15 Comments Alcohol Breathalyzer circuit using 8051 microcontroller (AT89S51). This article is about a breathalyzer circuit using 8051 microcontroller which outputs the blood alcohol content (BAC) from the breath. The BAC is displayed in percentage on a 3 digit seven segment display. …
This is instructable for how to get started with PICAXE 08M microcontroller. To get started, you need: – 08M Protoboard or same kind of board (Can be homemade) – A LED – AXE027 USB Cable – 3V Power supply Step 1: Connect the led to pin 4 Just connect cathode lead to Ground, and anode …
How to get started with PICAXE 08M microcontroller Continue Reading
Simple method for creating a custom button keypad that doesn’t require separate hardware. Just your microcontroller buttons a few resistors. What we have here is 9 buttons and 6 signal lines (3 inputs, 3 outputs). The basic setup is in a grid pattern where the three input lines come down as columns (PIN0, PIN1, and PIN2), and …
Single-Axis PIC Controlled Solar Tracker DIY Kit Hi All I’m not going into as much depth with this instructable due to my current time constraints. That said, I fully plan on updating this instructable as time progresses with new algorithms and programs for optimization. Intro: I was messing around with some new stepper motors one …
Single-Axis PIC Controlled Solar Tracker DIY Kit using PIC18F1220 Continue Reading
This project is a spin-off of another project I am working on and since there is a Remote Control 2017 contest on Instructables I thought I post this project. So if you like this project, please vote for it. Thanks. As you may know, I am a big fan of the Microchip 8-bit PIC controllers, …
Introduction In our final project, we used CMOS camera to identify interval binary 0 and 1 sequence represented by black and white bars. Then, we used WIFI module to transmit the sequence to personal computer and displayed it on a web page. In our projects, we chose OV7670 CMOS camera and ESP8266 WIFI module for …
Introduction For our ECE 4760 final project, we designed, constructed, and tested a glove-operated system that dynamically simulates the classic toy, Etch A Sketch, on a TFT LCD screen. In deciding what to build, our team wanted to create a device that would utilize several of the technologies overviewed in the course, in a fun, …
Introduction We created gloves that allow users to type on any hard surface as if they were using a QWERTY keyboard. The gloves recognize the standard QWERTY keyboard layout by recognizing which finger is pressed, and how bent the finger is. It is limited to recognizing the three primary rows along the keyboard, from “q” …
Engineers of my generation in the UK will remember the Science of Cambridge Mk14. Intended to be Sir Clive Sinclair’s first home computer kit for the general public, it served to train a generation of electronics engineers in how to program microprocessors. The Mk14 was based on, and virtually identical to, the ‘Introkit’ that was …
Following on from the LED flasher circuit, we can reduce the delay in the loop to 10uS (10 microseconds) and produce a 100Khz square wave. Given a 4 Mhz PIC 16C84, the program below will generate a 100Khz square wave on PORTA bit 0 (i.e. pin 17). This little program is useful for testing oscilloscopes …
100KHz Square Wave generator using PIC16C84 Continue Reading
