SKU: 20969325596

HKM-656659 Micro USB Development Board with 8k Flash Memory and Multiple Power Options

Sale price$62.99 Regular price$69.99
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Description

HKM-656659 Micro USB Development Board with 8k Flash Memory and Multiple Power OptionsIntroducing the HKM 656659 Micro USB Development Board, a versatile and reliable tool designed for developers and hobbyists alike. This development board supports Arduino IDE versions 1. 0 and above across various operating systems including OSX, Windows, and Linux, opening up a world of possibilities for your projects. Power your innovations effortlessly with multiple power options. The HKM 656659 can be powered via USB or by utilizing an additional

Introducing the HKM-656659 Micro USB Development Board, a versatile and reliable tool designed for developers and hobbyists alike. This development board supports Arduino IDE versions 1.0 and above across various operating systems including OSX, Windows, and Linux, opening up a world of possibilities for your projects.

Power your innovations effortlessly with multiple power options. The HKM-656659 can be powered via USB or by utilizing an additional power supply with voltage ranging from 5V to 35V, thanks to its automatic matching feature. A built-in 500mA 5V regulator ensures that your board operates smoothly without risking damage to your components.

With 8k of Flash Memory—approximately 6k available after bootloader installation—this board provides ample space for your code and projects. You'll have the flexibility to connect numerous peripherals with six I/O pins, two of which support USB functionality. It also boasts impressive communication capabilities, including I2C and SPI via USI, allowing for seamless integration with other devices.

For those projects requiring precise signal control, PWM is available on three pins, and additional PWM capabilities can be implemented with software. Plus, the inclusion of an ADC on four pins means you can easily gather and process analog signals for real-time applications.

The HKM-656659 also features clear indicators with Power LED and Test/Status LEDs, making it easy to monitor your system's performance. Whether you’re prototyping an electronic device or exploring new programming techniques, this development board is designed to meet your needs.

Included with your purchase is one Micro USB development board, making it the ideal starting point for your next technology project. Embrace your creativity with the HKM-656659 Micro USB Development Board, where innovation is just a connection away.

Product information:

Support Arduino IDE 1.0+ (OSX/Win/Linux)
It can be powered by USB or 5v or 7-35v (automatic matching) additional power supply
There is a 500ma 5V regulator on the motherboard
USB embedded (serial debugging)
6 I/O Pins (2 to support USB)
8k Flash Memory (about 6k after bootloader)
I2C and SPI (vis USI) PWM on 3 pins (more possible with Software PWM)
ADC on 4 pins
Power LED indicator and Test/Status LED



Packing list:

Micro usb development board*1



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Exchange/Return Notes
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SKU: 20969325596

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Dr.Nanny
Phoenix, US
★★★★★ 5
Terrific frothing pitcher
Color: Silver, Size: 11.8 Ounces
Just the right size. Well made.
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Reviewed in the United States on March 24, 2026
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Gabriel marin
Grantham, US
★★★★★ 5
Perfect for Lattes
Size: 20 Ounces
Good for steaming 8-10 oz of milk. The nifty tool is good for scooping out your puck.
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Reviewed in the United States on February 19, 2026
J
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JeffTryHard
Boise, US
★★★★★ 5
Almost blew up my microwave
Size: 20 Ounces, Size: 20 Ounces
TL;DR "A hilarious microwave mistake turned into a great home cafe upgrade. This 20oz cup is straightforward to handle, looks incredibly professional, and holds a level of heat that will literally burn you if you aren't careful." . Bought this for homemade coffee brewing, just to spice things up. But as I go ahead to heat up my new shiny stainless steel milk frother cup in the microwave, whoopdy doo. Ya can’t put stainless in the microwave! Regardless, it’s still a straightforward frother cup to handle, making it a great dollar investment for upgrading my home cafe setup. . 1. Spotless Stainless Steel: Its sleek appearance made me feel professional in the hands of an amateur like moi. Great quality! 2. Temperature Retention: I accidentally burnt myself because it stayed so hot, but that is a major positive. Proving the insulation works perfectly and keeps the milk piping hot. 3. Size: The 20oz capacity is accurate, providing the perfect amount of space for frothing without any overflow.
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Reviewed in the United States on June 6, 2026
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Kayla
Waukegan, US
★★★★★ 5
Sturdy
Size: 20 Ounces
Great pitcher
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Reviewed in the United States on January 20, 2026
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Q Nguyen
Pawtucket, US
★★★★★ 4
Decent pitcher
Size: 11.8 Ounces
Smaller than expected. I frothed 5 oz of milk and it was almost a mess.
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Reviewed in the United States on October 16, 2025

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