Eight programmable DC power supplies compared for embedded, robotics and repair work, from the Riden RD6006 and DPS5005 buck modules to lab-grade Korad, Siglent and Rigol bench units, with verified Amazon links and honest verdicts.
The best Teensy 4.1 and Teensy 4.0 boards for 2026 — 8 verified picks covering pre-soldered and bare boards, the Ethernet kit, the Rev D audio shield, the lockable secure version and a screw-terminal breakout. Real specs, honest pros and cons, and direct Amazon links.
The best Jetson Nano dev kits for 2026: 8 NVIDIA Jetson developer kits compared, from the 67 TOPS Orin Nano Super reference kit to ready-to-boot Seeed reComputer boxes, Waveshare and Yahboom bundles, a fanless industrial unit and a full ROS2 robot platform. Real specs, verified Amazon listings and honest verdicts.
Discover the 6 best current and voltage sensor modules for Arduino, ESP32, STM32, and Raspberry Pi — from I²C DC monitors (INA219, INA226, INA260) to AC voltage sensors (ZMPT101B), non-invasive clamp CTs (SCT-013), and beginner analog kits (ACS712). Verified Amazon ASINs, honest pros & cons, and affiliate links included.
The best ultrasonic distance sensors for Arduino, ESP32 and Raspberry Pi in 2026 — 10 picks compared on range, interface, accuracy and waterproofing, with real specs, honest verdicts and direct Amazon links.
TMC2209 SilentStepStick is a step/direction driver for two-phase bipolar stepper motors having a current of up to 2.8A peak to peak and 2A RMS. It can drive a 2-phase bipolar stepper motor from 1 to 1/256 steps mode. On top of that, TMC2209 offers a simple UART interface to tune and control with the help … Read more
DS9490R is a USB to 1-wire adapter embedded with 1-wire technology launched by Maxim integrated. This adapter is used to connect a 1-wire output sensor to a computer through a USB port. That means this connector converts a 1-wire connection into a USB connection to be used with a USB port of a computer. The … Read more
CP2102 UART module is the upgraded version of RS-232 Communicator introduced by Silicon Labs. It is a single CP2102 chip USB to UART Bridge with 12Mbps USB full speed. CP2102 possesses a high-performance, inbuilt transceiver for serial data along with suspend/resume signals for the energy control of the chip and external circuitry also. The module … Read more
iButtons DS1990A is an amazing compact device introduced exclusively by Maxim integrated. It has a factory-lasered 64-bit identification number imprinted for unique traceability. This engraved unique number is un-alterable. On top of that, this coin-sized device is a rugged device that can resist harsh environments. The component is a coin-shaped enclosure with an integrated 1-wire … Read more
VIPER22A is a switched-mode power supply controller IC introduced by STMicroelectronics. The device converts Analog voltage to the required regulated DC level for different purposes by switching techniques. This IC comes with a PWM Controller and a powerful MOSFET. It is used mainly in transformerless circuits. It has a wide input AC supply range along … Read more