Random Bits
1pcs CJMCU CP2102 MICRO USB to UART TTL Module 6Pin Serial Converter UART STC Replace FT232 NEW for arduino
$1.31
Free shipping
9893 in stock
New KY-008 Laser Transmitter Module for arduino AVR PIC Free Shipping
$0.42
Free shipping
9988 in stock
Just a laser pointer. Contains all the current limiting driver components you need, so just supply it 5V and start burning people's eyes out (note: please don't do that.)
Free shipping! LTC-3588 Energy Harvester Breakout - LTC3588-1 module
$11.00
Free shipping
995 in stock
Designed to take the brief high voltage spikes from impacts on piezo elements, to generate a smooth & regulated low voltage DC supply at 10-100mA. Designed to harvest power from vibration or any rapid changes of direction.
16 Channel 12-bit PWM/Servo Driver-I2C interface PCA9685 for arduino or Raspberry pi shield module servo shield
$2.15
Free shipping
9958 in stock
Hot Selling 1PC 5A Adjustable Power CC/CV Step-down Charge Module LED Driver Voltmeter Ammeter Constant current constant voltage
$4.50
Free shipping
99995 in stock
These are great bang for buck, up to 5A of adjustable voltage, adjustable current power supply, with built-in voltage and current meter. These are actually smaller than I initially expected, and although the trimpots are a little annoying to use, I cant fault this unit for features or price.
1pcs Smart Electronics GPRS module GSM module A6 \ SMS \ Speech \ board \ wireless data transmission adapter plate
$4.07
+ $0.32 shipping
9997 in stock
These use the 2G mobile network, which will be shutdown in coming years in most countries, which has dropped the price of these modules like a stone. In most areas you still have at least several years of working time, possibly more, so a great cheap way to add mobile communications to your projects.
Free Shipping Hot Sale ACS712 30A Range Hall Current Sensor Module ACS712 Module For Arduino 30A
$1.80
Free shipping
9997 in stock
Free shipping! GY Digispark kickstarter miniature minimal development board ATTINY85 module for Arduino usb
$1.30
Free shipping
974 in stock
Another of the ATTiny85 DigiSpark boards. These use *SOFTWARE* based USB, but do a surprisingly good job of that.