Learn Arduino programming by creating 150+ Arduino tutorials and projects with step by step instructions and example sketches in Arduino IDE
The best digital calipers for makers: 8 picks including the Mitutoyo 500-196-30, iGaging Absolute Origin, Mitutoyo 505-742J dial, Clockwise Tools DCLR-0605, NEIKO 01407A and Starrett, compared on accuracy, encoder type, IP rating and data output for 3D printing, electronics and hobby machining.
The best Arduino Pro Mini boards compared: genuine SparkFun 5V/16MHz and 3.3V/8MHz boards, HiLetgo clone packs, a CP2102 starter kit, a 5-pack lot and the FTDI programmers you need to upload code.
Seven Orange Pi single board computers ranked and compared, from the tiny Allwinner H618 Zero 3 to the RK3588 powered Orange Pi 5 Plus, with real specs, honest verdicts and direct Amazon links.
Eight obstacle avoidance robot kits ranked, from a servo-swept ultrasonic Arduino car to a mecanum robot with two infrared sensors plus sonar and a Raspberry Pi that avoids obstacles with a camera, with real specs, honest verdicts and verified Amazon links.
7 of the best 6-DOF robot arm kits compared for 2026 — Hiwonder xArm 1S, Yahboom DOFBOT, LeArm Open Source, OWI-535, Waveshare RoArm-M3-S, SO-ARM101 and ArmPi FPV — with real specs, honest pros and cons, and verified Amazon links.
The best flex and force sensors for 2026 — 8 bend, force-sensitive resistor, load-cell and thin-film picks compared on range, size and output for Arduino, ESP32 and robotics.
8 best color sensors for embedded devices compared — TCS34725, AS7341, APDS-9960, TCS3200, ISL29125 and more — on output type, channels, interface and illumination for Arduino, ESP32 and Raspberry Pi color detection projects.
Discover the best IR sensors and obstacle avoidance modules for Arduino, ESP32, Raspberry Pi and robotics projects. Verified ASINs, real specs, honest reviews and direct Amazon links.
The best microSD cards for Raspberry Pi in 2026 — 10 picks compared on A2 random-IOPS, speed class, endurance and value for Pi 4, Pi 5 and Pi Zero, with honest verdicts and direct Amazon links.
7 soil moisture sensors ranked for makers, students and engineers — capacitive vs resistive, TLC555I vs NE555, analog vs digital output — with verified Amazon ASINs, real specs, honest pros & cons, and direct buy links.