Embedded Lab An online teaching laboratory for Microcontrollers and Embedded Systems Home Products Theory PIC Experiments PIC Projects Tips Tricks dsPIC chipKIT Netduino Contact Netduino Day 4 Eight Digit Seven Segment LED Display with MAX7219 ANir Jan 30th , 2013 237 views In Day 3 tutorial we learnt basics of seven segment LED displays and discussed about a time-division multiplexing technique that reduces the number of required microcontroller I O pins to drive multiple seven segment LED displays . Today we will move a step further and discuss about a serial interface SPI for driving 8 seven segment LED displays . The technique uses MAXIM’s MAX7219 LED driver chip that allows you to control 8 or more in cascade configuration common-cathode seven segment LED displays with only 3 I O
Ronald Willem Besinga writes: One of the basic usage of the TIMER peripheral on every microcontroller is to provide the accurate timing mechanism. Using the TIMER peripheral as the basic timing, we could easily develop a stopwatch and display it to the 8-Digit seven segment numeric LED display. Thanks to the Maxim MAX7219 chip which [...]
This is a simple project of Android Bluetooth Car with Bluetooth control. This project is open source and multiplatform: Arduino (Processing), STM32, MSP430, PIC, AVR, FEZ Panda II (.NET Micro Framework) and may be even В Raspberry Pi. To control the car used Android-device with a built-in accelerometer. Tilt forward – car goes forward, tilt [...]
The MAX44281 is the industry’s first op amp in a 4-bump WLP package, designed for use in portable consumer and medical applications. This device is offered as a noninverting amplifier with gain (AV) of +1V/V, +2V/V, or +10V/V. The device features rail-to-rail output, low 100µV input voltage offset, and 15MHz of bandwidth with only 700µA [...]
A logic analyzer is a powerful debugging tool for capturing many digital signals at once and analyzing their timing relationships. Raj from Embedded Lab has posted a new tutorial that provides a quick overview of a logic analyzer tool and its uses in troubleshooting problems arising from timing violations and transients on microcontroller buses. He [...]
APC 8750 is a mini PC runs a custom Android system, built for keyboard and mouse input. A basic selection of applications is preinstalled. Also included is a full set of consumer I/O ports, enabling APC to connect to your PC monitor or TV. Powered by a VIA WonderMedia ARM processor, Android PC system (APC) [...]
Not sure how but suddenly its just stop responding. May be a internal OS crashed or something. So had to reprogram it. Filed under: Digital Electronics
Filed under: Digital Electronics, New Technologies
Filed under: Digital Electronics Tagged: 16F628A, ATmega, Clock, Colombo, Digital, Display, electronics PIC microcontroller, High Power, LED, microchip, Microcontroller, OptoElectronics, OptoElectronics.lk, Pasan, pasanlaksiri, PasanMicroProjects, Sri Lanka
Filed under: Digital Electronics
Embedded Lab An online teaching laboratory for Microcontrollers and Embedded Systems Home Products Theory PIC Experiments PIC Projects Tips Tricks dsPIC chipKIT Netduino Contact Soldering instructions for the TrH Meter kit R-B Jan 3rd , 2013 810 views First of all I would like to thank all of those who preordered the TrH Meter kits during the fundraising campaign that we ran on Tindie It’s because of your support that we successfully launched this project . Please follow the soldering instructions provided below while building the TrH . Meter TrH Meter project kit The kit contains total 29 items that are listed . here Components inside the kit Step 1 The TrH Meter board contains all through-hole components except for IC2, which is the AMS1117-5.0 regulator IC in SOT-223 surface mount