A presence sensing device powered by a mean well AC DC converter with a ESP32 C3 for it's brain plus a ld2410 mmwave module.
the relay can be used to switch mains power.
the ld2410 is connected through the terminal connectors.
R2 changes:
-Moving to Letter Modules for ease of design
-Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes:
-Changed LED part to Red LEDs
-adjusted resistor value of buck converter
-Changed source for USB-C Connector
-Removed exposed soldermask on buck converter with negative soldermask expansion
-Order with black soldermask
Modified by markwu2001:
- Adjustable Brightness,
- 85-90% Drive Efficiency
- <5W Operation (Can use 5V 1A Plug)
This project can be purchased from LCSC
Original Description:
Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.
#template
R2 changes:
-Moving to Letter Modules for ease of design
-Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes:
-Changed LED part to Red LEDs
-adjusted resistor value of buck converter
-Changed source for USB-C Connector
-Removed exposed soldermask on buck converter with negative soldermask expansion
-Order with black soldermask
Modified by markwu2001:
- Adjustable Brightness,
- 85-90% Drive Efficiency
- <5W Operation (Can use 5V 1A Plug)
This project can be purchased from LCSC
Original Description:
Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.
#template
R2 changes:
-Moving to Letter Modules for ease of design
-Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes:
-Changed LED part to Red LEDs
-adjusted resistor value of buck converter
-Changed source for USB-C Connector
-Removed exposed soldermask on buck converter with negative soldermask expansion
-Order with black soldermask
Modified by markwu2001:
- Adjustable Brightness,
- 85-90% Drive Efficiency
- <5W Operation (Can use 5V 1A Plug)
This project can be purchased from LCSC
Original Description:
Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.
#template
Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.
R2 changes:
-Moving to Letter Modules for ease of design
-Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes:
-Changed LED part to Red LEDs
-adjusted resistor value of buck converter
-Changed source for USB-C Connector
-Removed exposed soldermask on buck converter with negative soldermask expansion
-Order with black soldermask
Modified by markwu2001:
Adjustable Brightness,
85-90% Drive Efficiency
<5W Operation (Can use 5V 1A Plug)
This project can be purchased from LCSC
R2 changes:
-Moving to Letter Modules for ease of design
-Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes:
-Changed LED part to Red LEDs
-adjusted resistor value of buck converter
-Changed source for USB-C Connector
-Removed exposed soldermask on buck converter with negative soldermask expansion
-Order with black soldermask
Modified by markwu2001:
- Adjustable Brightness,
- 85-90% Drive Efficiency
- <5W Operation (Can use 5V 1A Plug)
This project can be purchased from LCSC
Original Description:
Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.
#template
R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask
Modified by markwu2001:
Adjustable Brightness,
85-90% Drive Efficiency
<5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC
Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template
R2 changes:
-Moving to Letter Modules for ease of design
-Adding ESP32 for WiFi On/Off and intensity control
-Optional: Add unpopulated AA Battery Holder for battery option
R1 changes:
-Changed LED part to Red LEDs
-adjusted resistor value of buck converter
-Changed source for USB-C Connector
-Removed exposed soldermask on buck converter with negative soldermask expansion
-Order with black soldermask
Modified by markwu2001:
- Adjustable Brightness,
- 85-90% Drive Efficiency
- <5W Operation (Can use 5V 1A Plug)
This project can be purchased from LCSC
Original Description:
Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.
#template
Carrier PCB schematic for a four-wheel Arduino Nano ESP32 spy car using two TB6612FNG motor-driver modules, removable Nano sockets, servo/sensor/light/buzzer connectors, and protected shared battery power. PCB layout is intentionally deferred pending module dimensions and electrical ratings.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
