$9.8

DC5.5V-35V Positive Negative Voltage Stabilizing Power Supply Module Low Ripple

$44.99

1-10Piece 4/16MB RP2040 Pro Micro Development Board Type-C for Raspberry PI

$14.99

Raspberry Pi NRF24l01+ Shield Add-on with Prototyping Area & 5V/3.3V Regulator

$89

ST1 Solar Node RAK LoRa Mesh Solar Powered RAK4631 Dev-Board Solar LoRa Wireless

$9.9

Adafruit 16 RGB LED Neopixel Ring

$29.5

XBP9B-DMUT-002 XBee Long Range Mesh Radios Sold EA

$18.99

Compact Seeeduino XIAO Microcontroller: 32-bit SAMD21 with USB Type-C Interface

$19.79

Pre-Soldered Raspberry Pi Pico Microcontroller with 133 MHz Dual-Core Processor

$2.81

6S 14A 25.2V BMS Balance Battery Charging Protection Board For 18650 Li-ion

$4.74

4x For LM2596 DC-DC 1.25V-35V Step-Down Power Supply Module

$4.99

SX1278 LoRa RA-02 433MHz Spread Spectrum Wireless SPI Transmission Module RA-02

$4.99

16 Modes LED Magnetic Induction Light Switch Control Lights Wireless Lamp Toys