Tag: Mcu
4Duino UCAM-II Demo
by 4D Systems @ instructables.com: The main objective of this project is to show how to interface a uCAM-II serial camera to 4Duino. uCAM-II is a highly integrated micro serial camera which could be controlled by any host that requires a video camera or a JPEG compressed still camera...
Continue ReadingAriCalculator – A homemade handheld calculator
The AriCalculator is a DIY calculator or a general purpose handheld device. It is battery powered and runs on a NXP S12G240 microcontroller (16-bit, 240k flash, 11k RAM). The device has 38 input keys and a 128x64 pixel LCD display with a backlight option. Three interfaces connect...
Continue ReadingHT48R002 A Very Cheap OTP MCU as Low as $0.085/Unit
A highlight from CNXSoft about Holtek HT48R002 MCU as the cheapest MCU. HT48R002 is a 8-Bit OTP (One Time Programming) MCU with the following key features (datasheet): 8-bit RISC MCU @ 8MHz. 1K x 14-bit ROM (OTP). 64 x 8-bit RAM data memory. 6x I/O including 1x external...
Continue Reading16 Channel Tiny InfraRed Remote Controller – NEC Code
16 Channel Infra-Red remote controller is built around PIC16F73 Microcontroller from Microchip. The receiver part follows NEC Code Format. Tiny receiver provides 16 latch outputs. All outputs are TTL and can drive Relay board or solid state relay. The circuit uses TSOP1738 Infra-Red...
Continue ReadingHow to interface Keypad 4×4 with Arduino
In this tutorial we are going to learn some basics on using Keypad 4x4 on Arduino. by mybotic @ instructables.com This keypad consists of 4 rows x 4 columns of buttons. It is ultra-thin that it provides an useful human interface component for microcontroller projects. Convenient...
Continue Reading“Chipiplexing” efficiently drives multiple LEDs using few microcontroller ports
by Guillermo Jaquenod @ edn.com Actual microcontrollers have powerful bidirectional I/O ports, and you can use different techniques to fully exploit such capabilities. Recent Design Ideas described the “Charlieplexing” method as an effective way to drive M=N×(N–1) LEDs using...
Continue ReadingTV Tuner IR remote with a PIC16F684
Tahmid built a TV tuner IR remote with a PIC16F684: I then proceeded to write an IR transmitter using the PIC16F684 (using the MPLAB X IDE and XC8 compiler), following the timing information from the extended NEC protocol. In order to connect all the keys, I connected them in...
Continue ReadingNew PIC32MM family consumes as little as 500 nA
by Clemens Valens @ elektormagazine.com: The new PIC32MM family, currently Microchip’s lowest power 32-bit PIC32 family, features sleep modes down to as little as 500 nA. Filling the gap between the PIC24F XLP and PIC32MX families, the new family also offers so-called core...
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