Tag: Microcontroller
Build Your Own Cheap Antenna Analyser
Ham radio is the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, etc. Developing a ham radio project may requires using an antenna analyser, a device that is used for measuring input frequency and...
Continue ReadingRecover Bricked ATtiny Using Arduino as high voltage programmer
Hi! Today I'll explain you how to recover your bricked ATtiny microcontroller using your Arduino board. ATtinys are very popular due to their small form factor yet very powerful. While working with them you may accidentally brick the ATtiny. As arduino is extremely popular and really...
Continue ReadingProgram AVR Using Arduino the easy way
rik @ riktronics.wordpress.com show us how to program AVR microcontrollers using an Arduino board. Advanced hobbyists like me (and you, of course 😉) love to play with microcontroller. And the most famous microcontrollers for beginners are AVR series from Atmel™. Almost...
Continue Reading40 PIN & 28 PIN PIC18F USB Development Board
PIC18F USB Development Board will help you with your prototyping requirement with any 28/40-pin Microchip microcontroller supporting USB interface . The board has been tested using PIC18F4550 40 Pin & PIC18F2550 28 Pin Microcontrollers. Features All ports terminating in...
Continue ReadingSonicare toothbrush teardown: microcontroller, H bridge, and inductive charging
Ken Shirriff did a teardown of a Sonicare electric toothbrush: The photos below show the top and bottom of the toothbrush internals. I expected to find a simple, low-cost mechanism, so I was surprised at how much complexity there was inside. The vibration mechanism (right) is built...
Continue ReadingAdding ADC to Microcontrollers without ADC
Scott @ swharden.com show us how to interface an analog signal to a microcontroller that doesn't have an ADC. I recently had the need to carefully measure a voltage with a microcontroller which lacks an analog-to-digital converter (ADC), and I hacked together a quick and dirty method...
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 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...
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