INA219 Bi-directional DC Current Power Supply Sensor Breakout Module DIY 3V-5V IIC I2C Power Monitoring Sensor Module buy it!
$1.00-$1.54
DC 0-25V Standard Voltage detection Voltage Sensor Module for arduin Diy Kit buy it!
$0.01-$0.20
DIY Electronics Kit buy it!
$8.71
DY-HV8F DY-HV20T Voice Playback Module Board MP3 Music Player 10W 20W 12V 24V Playback Serial Control DIY Electronic buy it!
$1.50-$3.59
MEGA 2560 PRO Embed CH340G/ Chip with male pinheaders Compatible for arduino Mega2560 DIY ATMEGA2560-16AU
$3.00-$5.00