HC-14 wireless module LoRa serial communication 433MHz transparent transmission SX1278 receiving and transmitting 3 kilometers 3-5.5V
SMY-W2001 intelligent digital display temperature control electronic temperature controller switch adjustable temperature socket boiler 220V
WT-1001 intelligent digital display temperature control electronic thermostat controller switch adjustable temperature controller socket
LED2015 music spectrum level light multi-mode DSP Equalizer EQ voice-controlled pickup color acrylic shell
Extra Large Button 4*4/1*4/3*4/4*5 Matrix Keyboard Microcontroller External Expansion Keyboard Membrane Keyboard
Large keys 1x 4 3x 4 4x 4 4x 4 4x 5 matrix keyboard film control panel microcontroller external expansion keyboard
XH-M542 mono 100W digital power amplifier board instead of TPA3116 digital audio amplifier board 12-26V
