LCD VLGEM1277-01 Temperatur/Humidity Controller Board PCB/Kit
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Temperature/humidity controller board for the adapter board LCD VLGEM1277-01.
The temperature/humidity controller board can be plugged onto the adapter board LCD VLGEM1277-01.
The temperature/humidity controller board is equipped with a DC/DC converter R-78K5.0-1.0 or R-78K3.3-1.0, depending on the variant.
The max. input voltage is 6.5V ... 36V or 4.5V ... 36V, depending on the DC/DC converter.
This enables supply over a wide voltage range.
An AVR64DD28-I/SP is used as the microcontroller. A plug-in AHT25 is provided as a temperature/humidity sensor.
Another sensor can also be used via a second connector. The MCU generates a PWM 1000Hz to dim the display.
This can be set from 1% to 100% using software. A BP103 photo sensor is also provided (brightness control),
but this is not included in the scope of delivery.
The firmware supports the following: 1000Hz PWM, AHT25 driver, display driver for the display controller S1D15721 (VLGEM1277-01).
An open source graphic library, the µGUI v0.3 from Embedded Lightning was slightly adapted and implemented on the MCU.
Everyone who buys this kit gets the software as a free download.
Variants for ordering:
PCB: only circuit board
Connector: plugs, sockets, screws, spacers, IC socket
Complete set +5V: all components according to parts list plus AHT25 sensor including Adapter Board +5V VCC and Display
Complete set +3.3V: all components according to parts list plus AHT25 sensor including Adapter Board +3.3V VCC and Display
Variant 3.3V of LCD-VLGEM1277-01-Temp1.PDF
Variant 5.0V of LCD-VLGEM1277-01-Temp1.PDF
Firmware Temperatur/Humidity Controller Board.zip ( update 03.03.2025 )
The temperature/humidity controller board can be plugged onto the adapter board LCD VLGEM1277-01.
The temperature/humidity controller board is equipped with a DC/DC converter R-78K5.0-1.0 or R-78K3.3-1.0, depending on the variant.
The max. input voltage is 6.5V ... 36V or 4.5V ... 36V, depending on the DC/DC converter.
This enables supply over a wide voltage range.
An AVR64DD28-I/SP is used as the microcontroller. A plug-in AHT25 is provided as a temperature/humidity sensor.
Another sensor can also be used via a second connector. The MCU generates a PWM 1000Hz to dim the display.
This can be set from 1% to 100% using software. A BP103 photo sensor is also provided (brightness control),
but this is not included in the scope of delivery.
The firmware supports the following: 1000Hz PWM, AHT25 driver, display driver for the display controller S1D15721 (VLGEM1277-01).
An open source graphic library, the µGUI v0.3 from Embedded Lightning was slightly adapted and implemented on the MCU.
Everyone who buys this kit gets the software as a free download.
Variants for ordering:
PCB: only circuit board
Connector: plugs, sockets, screws, spacers, IC socket
Complete set +5V: all components according to parts list plus AHT25 sensor including Adapter Board +5V VCC and Display
Complete set +3.3V: all components according to parts list plus AHT25 sensor including Adapter Board +3.3V VCC and Display
Variant 3.3V of LCD-VLGEM1277-01-Temp1.PDF Variant 5.0V of LCD-VLGEM1277-01-Temp1.PDF Firmware Temperatur/Humidity Controller Board.zip ( update 03.03.2025 )
