Main chip: LM393, Electret condenser microphone
Working voltage: DC 3.3-5V
Induction distance is 0.5M
Signal output Indication
Single channel signal output
The output effective signal is low level.
Working voltage: DC 3.3-5V.
IC Chip: LM393
Signal output indication.
The output is digital.
Single channel signal output.
With the retaining bolt hole, convenient installation.
Output low level and the signal light when there is sound.
Working voltage: 3 ~ 5V
Board size:54 x 38 mm
ISD1820 Sound/Voice Board Recording
100% Brand new and high-quality Board
ISD1820 chip with an Onboard microphone