Super Simple Arduino Load Driver V2.0. Now control Polarity!

This is version 2.0 of the previously successful kickstarter project I launched last year.  I have a ton of these PCB boards left over and it got me thinking.  Why not find a P channel MOSFET with the same pinout and use it to control the direction of the motor also. I looked around and found the IRF5210.  I ordered up a batch and tested them out.  All thats left to do now is order a large quantity for the ...

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Serial Addressable RGB PWM LED Driver using PIC16F628A

Overview Ever since I made the serial controlled RGB LED PWM driver I've had many requests for an addressable driver.  Well I've finally got round to producing one.  The code is now completed and tested and the prototype boards are fully working. The design process behind this project was to enable anyone with a bit of electronics knowledge to build an array of cheap RGB LED drivers that they can control fr ...

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Standard release for lighting LED-driver interface

The Module-Driver Interface Special Interest Group (MD-SIG) has released its specification for a universal electrical interface between LED lighting modules and their power supplies. The standard has the support of Osram, Panasonic, Philips and Tridonic. Called LEDset1 edition1.0, it is a three wire interface (see diagram): power, ‘Iset’ and a return for both. The specification also allows for separate retu ...

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6 Digit Serial Display Driver with CAT4016

6 Digit serial display project has been designed around CAT4016 IC from ON semi.  The CAT4016 is a 16 channel constant current driver for LED billboard and other general display applications. LED channel currents are programmed together via an external RSET resistor. Low output voltage operation on the LED channels as low as 0.4 V (for 2 to 100 mA LED current) allows for more power efficient designs. A high ...

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ESP8266 10-Base-T Ethernet Driver

Overall Discussion This is a relatively unreliable and coincidentally functional ESP8266 Ethernet driver. It only uses two pins on the ESP, the I2S pins, but does provide Ethernet. It does all its own manchester encoding/decoding, framing, FCS, etc. It mimics the ENC424J600 stack found in avrcraft and borrows the IP, ARP, UDP and TCP stacks from that project, too. This product was created by Charles Lohr, b ...

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Half Bridge Driver based on IR2104

This Half-bridge driver based on IR2104 gate driver IC and N channel Dpak  MOSFET  , The IR2104 is a  high voltage, high speed power MOSFET driver with independent high and low side referenced output channels. HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard COMOS or LSTTL output, down to 3.3V logic. A gate IR2104 driver is a powe ...

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4A Bipolar Stepper Motor Driver Based on LV8727E

The Project is based on LV8727E IC from ON Semiconductor. The LV8727 is a PWM current-controlled micro step bipolar stepping motor driver. This driver can provide eight ways of micro step resolution of 1/2, 1/8, 1/16, 1/32, 1/64, 1/128, 1/10, 1/20, and can drive simply by the step input. This Bipolar Driver works with supply input 9V to 36V (Replace L317 with L317HVT for supply input up to 45V DC). Load cur ...

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Replacement LED driver for AN6877

AN6877 is linear AF level meter IC produced by Panasonic and it is commonly found on many audio equipment. This chip is no longer manufactured by Panasonic and finding replacement chip for AN6877 is also quiet difficult. The circuit described in this article is design to replace AN6877 base LED drivers and it is based on commonly available components. This replacement LED driver is design using 10, MMBT3904 ...

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4 Channel DMX512 Driver for PIC16F688

 Description This project is a 4 channel DMX512 driver board.  It features four power MOSFETs that can be configured to operate in PWM mode or as on/off outputs.  The driver can be configured to use any four consecutive addresses across the full 512 channel address range.  It can be used to drive LED arrays or low voltage lamps in PWM mode or operate relays in static mode. Feature list: 4 channels with low ...

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USB Interface Board Driver Installation PIC18F4550

USB Interface Board Driver Installation Connecting PIC18F4550 First Time This tutorial will try to explain how to make your interface development board to work for the first time. Without a Demo hex code inside PIC18F4550's flash memory, it  won’t respond even if we connect the Demo Interface Board Directly to computer. In my previous post we have successfully loaded the Demo Hex Code into the PIC18F4550  u ...

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