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KD Circuits

1,416 orders since Aug 16, 2018

30 Reviews

Medina, OH, United States of America

Ships from United States of America.

Custom Work Available

trigBoard - Ultra Low Power ESP32 IoT Platform

trigBoard - Ultra Low Power ESP32 IoT Platform

KD Circuits

$34.99

FTDI USB-SERIAL Converter - 5V/3.3V

FTDI USB-SERIAL Converter - 5V/3.3V

KD Circuits

$16.00

328 Board - ATMEGA328P Breakout

328 Board - ATMEGA328P Breakout

KD Circuits

$5.00

5pcs - Plug Puller - JST PH 2.0mm (2pin)

5pcs - Plug Puller - JST PH 2.0mm (2pin)

KD Circuits

$5.00

trigSolar - Ultra Low Power Solar Control Board

trigSolar - Ultra Low Power Solar Control Board

KD Circuits

$25.00

UPDI to USB-Serial Programming Adapter

UPDI to USB-Serial Programming Adapter

KD Circuits

$4.00

Standalone ESP32 Programmer and Test Solution

Standalone ESP32 Programmer and Test Solution

KD Circuits

$68.00

Ultimate Proto Board - ATMEGA328 + Proto Area

Ultimate Proto Board - ATMEGA328 + Proto Area

KD Circuits

$5.00

Cheater Board-ATMEGA328 Breakout and Pinout Helper

Cheater Board-ATMEGA328 Breakout and Pinout Helper

KD Circuits

$3.00

BLE Board - A20737 Breakout

BLE Board - A20737 Breakout

KD Circuits

$2.00

AVR Programmer BARE Board

AVR Programmer BARE Board

KD Circuits

$5.00

About

My name is Kevin Darrah and I have a design services company called KD Circuits http://www.kdcircuits.com

One of my passions is teaching electronics on YouTube: https://www.youtube.com/user/kdarrah1234

A lot of the projects and concepts I talk about in those videos are based on my own designs, which is why I'm here on Tindie to make them available for sale.

Thanks for stopping by!
Kevin

@kdcircuits KD Circuits's Channel

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Reviews

Review Breakdown

5
21 4
8 3
0 2
0 1
1

Average Ratings

Product: (4.80)

Documentation: (4.67)

Shipping: (4.70)

Communication: (4.73)

Darrell | Aug. 18, 2022

Perfect solution for me!

For 328 Board - ATMEGA328P Breakout

I am using this board to operate at 16MHz with 3.3V power to communicate with a 3.3V transceiver. This mode of operation saves me a lot of board real estate, and the size is perfect for my application. I highly recommend it! The maker's YouTube video demonstrating 16MHz operation with 3.3V power convinced me! I highly recommend this product.

William | Feb. 18, 2022

Great idea!

For 5pcs - Plug Puller - JST PH 2.0mm (2pin)

I find these to be really handy! While a pair of tweezers with a curved tip will do, these are much more convenient and much less likely to cause collateral damage.

John | Dec. 8, 2021

trigBoard works as expected. More to explore.

For trigBoard - Ultra Low Power ESP32 IoT Platform

I would use it in battery operated IOT projects. It is not cheap but I see gold plated pins and professional soldering. Will buy it again for high-end projects

Trevor | Oct. 14, 2021

Swiss Army Knife for Serial Debugging

For FTDI USB-SERIAL Converter - 5V/3.3V

I've used a handful of different USB-serial convertors over the years as in new product development as an embedded engineer; this is the best converter I've used. I will have something like 20 in my possession here soon. While Amazon has a plethora of devices that generally get the job done, the level of configurability is just not there.

With these devices, the ability to flip easily between 3.3VDC and 5 VDC logic as well as supplying and not supplying power has saved me headaches and allowed for simpler dev and test set ups. It's odd, but about half of my designs have PICs using a 5V supply and the other half is MSP430 and a whole bunch of M0/3/4 core ARM processors. Throwing a serial link or 2 on a board is automatic at this point, and I always have 1+ of these little guys handy.

One last note: if serial converters are understood, then documentation is not necessary. The board itself has enough information on it to pluggin and get chuggin.

Jj | Sept. 2, 2021

Excellent clever product with support to match it 100%

For trigBoard - Ultra Low Power ESP32 IoT Platform

I initially bought a few Trigboards with accessories as an assessment for the requirement at my cabin with no internet and only cell service. I mocked up the Particle BORON cellphone based variation. Once I played around with it a bit I realized I have not tapped into the full potential and that the system works very well. I purchased several more boards and I am putting it all together now. Kevin’s support with my questions has been quick, very helpful and also enthusiastic. His documentation with videos are outstanding. It is clear he enjoys this and want to see his product succeed. Excellent, clever product with support to match it 100%.
I cant wait for the next idea with following project. Well done.

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