Real Time Clocks, as the name suggests are clock modules. They are available as integrated circuits (ICs) and manages timing like a clock. Some RTC ICs also manages date like a calendar. The main advantage is that they have a system of battery backup which keeps the clock/ca lender running even in case of power […]
Table of Contents Introduction Power Supply I/O Microcontroller RS422 and Limit Switches X, Y, Z, and Z Axes Selenoid and Motor Control Printed Circuit Board Issues Introduction The parts list is kept in a separate file. Power Supply The power supply schematic is shown below: The power supply is pretty mundane. The 110VAC comes in […]
Introduction The programmable IR remote controller is an IR remote control platform based on PIC32 that can record and resend the Infrared signal. To help users control programmable IR remote controller, an infrared wave server related to database and website is implemented in this project. Bluetooth module creates a bridge between PIC32 and server side […]
The lamp in my bedroom is a very cheap lamp from Wal-Mart. It stands in one corner of my room, opposite of the door. This is where the problem is: If it is dark, I have to walk across the room, not trip on anything, find the small knob to twist to turn on the […]
Introduction: In this project, PIC 18F4550 is programmed to perform the function of an oscilloscope. Communication is set up between the computer and the PIC through USB, so that bulk data transfer mode is implemented. Analogue circuits are carefully designed so the user can select gain and offset on the computer screen and have the […]
Overview Typically, two pics communicate by RS-232, a wired transmission. However, it may be desirable to communicate via a wireless link. This wiki page demonstrates using XBee radio modems which conform to the IEEE 802.15.4 protocol. These radios will allow for wireless communication between two PICs and between a PIC and a computer. File:XBeePinOut.jpg The […]
Introduction Do you ever find yourself lamenting that you live in a warehouse of unused VGA monitors, but don’t have any VGA signals to feed to them? Do you ever wish that you had a cheap way to drive these displays at high spatial and color resolution using a circuit you soldered with your bare […]
Line Follower Robots are the most common type of robots that are built by hobbyist and student interested in robotics and embedded systems. The reason for the popularity of the Line Follower robot is the fact that is simple to build and easy to understand the logic behind it. This post will give you working […]
Introduction For our final project, our team built a touch screen controlled Etch-A-Sketch we call Touch-A-Sketch. The Touch-A-Sketch is the first of its kind that allows users to draw on the touchscreen and sketches the drawing on the Etch-A-Sketch by controlling the knobs on either corner of the toy. There are four main components that […]
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 […]
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