PWA REV2
PubInv
A wireless alarm device which makes loud noises and flashes lights to alert a human
Main components
Download full BOM| Part Number | Description |
|---|---|
| LM7805_TO220 | Positive 1A 35V Linear Regulator, Fixed Output 5V, TO-220 |
| ESP32-WROOM-32E-N4 | SMD,18x25.5mm WiFi Modules ROHS |
| AMS1117-3.3 | 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 |
| PCF8574AT_3_518 | 8 100kHz I2C SOIC-16-300mil I/O Expanders ROHS |
| LCD_20x4_Character-GPAD_SCH_LIB | 2004 LCD Display Module Character 20x4 Blacklight Gray Yellow Blue |
| Conn_01x16 | Plugin,P=2.54mm Pin Headers ROHS |
| CH340B | 2Mbps 3.3V Transceiver USB 2.0 SOP-16 USB Converters ROHS |
| MAX3232CDR | 250Kbps Transceiver 2/2 SOIC-16 RS232 ICs ROHS MAX3232CDR |
PWA REV2 schematic
Open in new tabPWA REV2 board layout
PWA REV2 PCB render
