What This Is This project is for a small electronic unit that allows the user to sense the presence and relative signal strength of wireless hotspots. It can be worn as a pendant or carried in a pocket. It is “always on” and communicates the presence and signal strength of an in-range hotspot by way …
Build your own Wireless Network detector using PIC12F629 Read More »
Digital electronics and Analog electronics doesn’t mix easily. A Microcontroller can’t get analog values unless an Analog-to-Digital converter is used, however, you may find a little complicated the use of an ADC and it need lots of Input/Output ports. Some Microcontrollers, like the small 8-pin Microchip PIC 12F675, do have an ADC integrated, but …
Read analog values without an ADC using PIC12F675 microcontroller Read More »
What is meant by Analog to Digital Converter (ADC)? An ADC converts analog signal to it’s corresponding digital signal. How to convert analog signal to digital signal? CircuitsGallery.com has already posted ADC using LM324 IC, in that ADC tutorial I had already explained Analog to Digital Converter how it works. While dealing with Microcontrollers we may …
After interfacing the DHT11 with Arduino uno board at the following post: ARDUINO Humidity & Temperature Measurement Using DHT11 Sensor Now we are going to see how to interface this sensor with microchip pic16f877a. There are some descriptions of how this sensor work in the above link A brief description of the code: The code …
Introduction This project was the first stage of developing a controller for a radiant floor heat system. The microcontroller will use inputs from thermostats, thermocouples, a flow meter, and pressure switches to control the operation of the pumps and valves to achieve improved efficiency of the system as a whole. This project idea came from …
Introduction A digital thermometer is a good choice of project for beginners who just stepped in to the world of microcontrollers because it provides an opportunity to learn using sensors to measure the real world signals that are analog in nature. This article describes a similar project based on a PIC16F688 microcontroller and an LM35 …
A Digital temperature meter using an LM35 temperature sensor using PIC16F688 Read More »
Introduction This project describes a motion sensor alarm based on a Passive Infra-Red (PIR) sensor module. There are many vendors that manufacture the PIR sensor modules and almost all of them are pretty much the same in function. They have a single output that goes high (or low, based on specification) when the motion is …
Motion detection alarm using a PIR sensor module with a PIC12F635 Read More »
INTRODUCTION AirBass is an air bass guitar that allows the user to play distinct notes without the added weight and cost of an actual bass guitar. It implements various sensors for input to output sound that is accurate both in terms of frequency and duration. HIGH-LEVEL OVERVIEW SOCIAL IMPACT Our plan for this project was …
Introduction Our project was an EEG-controlled brain computer interface that allowed a user to correct errors in machine behavior. The project was modeled as a trial-based “game.” In each trial, a solid colored green block or dotted yellow block was placed on a conveyor belt. One end of the conveyor belt had a solid colored …
Measurement and control of temperature and relative humidity finds applications in numerous areas. These days devices are available which have both temperature and humidity sensors with signal conditioning, ADC, calibration and communication interface all built inside them. The use of such smart sensors greatly simplify the design and reduces the overall cost. We discussed in …
