envistia

ds3231 rtc real time clock module with at24c32 memory i2c for arduino

pca9685 16-channel 12-bit pwm servo motor driver i2c module for arduino

2-channel 5v pwm pulse / square wave generator module 1hz-150khz frequency

vt series pwm solar charge controller – 30a / 40a / 60a, 12v/24v/36v/48v, lead-acid & lithium

650nm 5mw red dot laser diode module — adjustable focus, apc driver, 3-6vdc, 12mm brass housing

2.0v to 4.5v in 5v usb out dc-dc pfm boost step-up power supply converter module

electronic starter kit: switches, leds, resistors, potentiometers for arduino

stm32f103 arm 72mhz 32-bit cortex-m3 leaf maple mini usb stm32 microcontroller

mq-7 carbon monoxide co gas sensor detector module

1x 18650 1s battery holder case box with 6" wire leads ~4v

10 pieces (10x) 2.1 x 5.5mm male dc power plug to 9v battery clip adapter cable

40-pin male header 0.1" 2.54mm breadboard/pcb strip connectors 10/25/50/100/200pcs

100 piece switching / fast recovery / schottky diode assortment 1n5399 1n5408 1n4148 1n4007 1n5819 1n5822 fr107 fr207

3s battery holder case clip box for 3x 18650 12v li-ion with 6" wire leads

a4988 stepper motor driver with expansion board — solderless jst motor connection, dip switch microstepping, arduino compatible

dc power supply metal jack socket female panel mount connector 5.5 x 2.1mm 2/5/10 pcs

40pin 20cm dupont 1p-1p wire jumper cables socket to socket female-female (f-f)

arduino uno r3 compatible development board (atmega328p, ch340 usb) – ideal for arduino projects & prototyping

atmega328p microntroller starter kit 830 point breadboard, 65 jumper wires, usb & battery cables

sma female to sma male (socket to pin) series rf coaxial adapter connector