You want to build a school bell control system using an ESP32.
Current project state:
A new empty Flux project exists.
No schematic components, nets, PCB layout, or documentation have been created yet.
I can’t execute design changes right now because there are no available ACUs for AI actions.
What remains to be done once ACUs are available:
Define the bell system requirements: number of bell outputs, relay/contactor voltage, power source, schedule storage, display/buttons, Wi-Fi/web configuration, RTC backup, and enclosure needs.
Create the schematic with ESP32, power supply, relay/driver stage, RTC module, protection, programming/debug access, and connectors.
Add firmware pin map and bring-up documentation.
Lay out the PCB, route it, and run ERC/DRC checks.
Recommended architecture: ESP32 + RTC backup clock + relay/contactor driver output + isolated/protected bell power interface, with Wi-Fi schedule configuration if desired.
General Purpose Thick Film Standard Power
and High-Power Chip Resistor
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film
Features:
- RMCF – standard power ratings
- RMCP – high power ratings
- Nickel barrier terminations standard
- Power derating from 100% at 70ºC to zero at +155ºC
- RoHS compliant, REACH compliant, and halogen free
- AEC-Q200 compliant
A momentary or non-latching switch which causes a temporary change in the state of an electrical circuit only while the switch is physically actuated. SWITCH TACTILE SPST-NO 0.05A 24V