Remote Blinds Control Design


design a remote and receiver pair for controlling a set of blinds. It needs to run on 5v have motor control, wireless transmitter and receiver (could use bluetooth ble or wifi esp now for example or other 433mhz signals). It needs to support lithium ion battery 3.7v and buck converter to 5v and lituhium battery charging.
I’ll design this as a two-board system: a handheld Li-ion remote and a motor-driver receiver, both with 5 V power architecture, Li-ion charging, and ESP-NOW wireless. I’ll first capture the requirements and power budget, then select parts, build/wire the schematic blocks, and run checks.
I updated the project specification to reflect the new blind-control remote/receiver system: two PCBs, ESP-NOW wireless, Li-ion battery support, USB-C charging, 5 V boost rails, and receiver-side motor control.
I also captured the key power-risk assumption: the receiver boost/battery path is provisionally sized around a 5 V motor up to ~2 A peak, which could require nearly 4 A from the Li-ion cell at low battery voltage. The actual motor stall current is the main missing requirement before final component selection.
Remaining work:
  • Select charger, boost converter, ESP32 module, motor driver, connectors, and support passives.
  • Consult datasheets for every IC.
  • Add and wire the full schematic for both boards.
  • Run design review/ERC and fix violations.
  • After schematic is clean, proceed to layout only with confirmation.
Use ESP-NOW
Select key parts
Add charging circuit
Power budget
Document motor assumption
No schematic yet

Talk to Flux to get started.