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
This is a climate control system reference design with a STM32WB5 microcontroller, power manager IC, USB Type-C, JST connectors, and an LCD driver.
#referenceDesign #edge-computing #edgeComputing #stm #template #iot #control #BLE #reference-design
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
This is a climate control system reference design with a STM32WB5 microcontroller, power manager IC, USB Type-C, JST connectors, and an LCD driver.
#referenceDesign #edge-computing #edgeComputing #stm #template #iot #control #BLE #reference-design
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 w Thread changes:
-Moving to Letter Modules for ease of design
-Adding MGM210L for Matter on Thread On/Off and intensity control
-Shifted A and R letters closer to fix Kerning
-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 #arduino-matter
The inverter specs are
Switching frequency: 200kHz
Input voltage: 180VDC
Output voltage: 120VAC
Max power: 1500W
I have designed an Inverter schematic for an uninterruptible power supply (UPS),
Used an efficiency LCL topology filter to eliminate 3rd and 5th harmonics as induction motor is connected at load.
The Inverter schematic that can convert 180VDC into 120VAC, which can be used in any household or industrial application.
You can refer the BOM to check the MOSFET parts, drivers, and filter parameter values.
This is a climate control system reference design with a STM32WB5 microcontroller, power manager IC, USB Type-C, JST connectors, and an LCD driver.
#referenceDesign #edge-computing #edgeComputing #stm #template #iot #control #BLE #reference-design
This is a climate control system reference design with a STM32WB5 microcontroller, power manager IC, USB Type-C, JST connectors, and an LCD driver.
#referenceDesign #edge-computing #edgeComputing #stm #template #iot #control #BLE #reference-design
IMPORTANT NOTICE:
Hey, I opened editing permissions and this doc is broken, see the frozen version here: https://www.flux.ai/markwuflux/on-air-markwu2001-remix-r1-backup-freeze-0b49
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.
The inverter specs are
Switching frequency: 200kHz
Input voltage: 180VDC
Output voltage: 120VAC
Max power: 1500W
I have designed an Inverter schematic for an uninterruptible power supply (UPS),
Used an efficiency LCL topology filter to eliminate 3rd and 5th harmonics as induction motor is connected at load.
The Inverter schematic that can convert 180VDC into 120VAC, which can be used in any household or industrial application.
You can refer the BOM to check the MOSFET parts, drivers, and filter parameter values.
Portable AI-powered spectral reflectance analyzer based on a Radxa Zero 3W carrier PCB, with AS7341 spectral sensing, GPS, SPI touchscreen LCD, microSD logging, USB-C LiPo charging, and integrated optical LED measurement head.
