Mikroelektronika d.o.o.
Tableau à clic UVC
Tableau à clic UVC
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Overview
Le Click Board UVC™ est une carte de détection ultraviolette qui complète UVC Light Click Board™ pour une solution ultraviolette ultime. La carte est basée sur un capteur ultraviolet GUVC-T21GH de GenUV, capable de mesurer le spectre UVC dans la gamme de 220 nm à 280 nm et l'intensité lumineuse de 0 mW/cm² à 9,3 mW/cm².
Doté d'une sensibilité élevée et d'une bonne cécité solaire, il peut être une solution parfaite pour surveiller les lampes de stérilisation utilisées dans l'irradiation germicide ultraviolette (UVGI), une méthode de désinfection qui devient un outil essentiel dans la lutte contre les virus et les bactéries.
Le Panneau à clic UVC™ dispose de deux façons de lire la sortie du capteur UV, la valeur de sortie analogique directe et la sortie numérique grâce au convertisseur ADC MCP3221.
| General Information | |
|---|---|
Part Number (SKU) |
MIKROE-4144
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Manufacturer |
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| Physical and Mechanical | |
Weight |
0.019 kg
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| Other | |
Country of Origin |
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HS Code Customs Tariff code
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EAN |
8606018717637
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Warranty |
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How Does The UVC Click Board™ Work?
The UVC Click Board™ can provide reliable and stable UVC light intensity value by using GUVC-T21GH sensor which have spectral detection range of 220nm - 280nm with output responsivity of 0.6mV/nW (at 254nm). Light intensity is converted in digital value by using MCP3221 a successive approximation A/D converter (ADC) with a 12-bit resolution.
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Communication to the MCP3221 is performed using a 2-wire, I2C compatible interface. Standard (100 kHz) and Fast (400 kHz) I2C modes are available with the device. An on-chip conversion clock enables independent timing for the I2C and conversion clocks.
To get reliable readings from sensor, ADC power and voltage reference is supplied from MCP1501T-33E/RW a buffered voltage reference with 3.3V output capable of sourcing up to 20mA of current as a low-drift bandgap-based reference. The bandgap uses chopper-based amplifiers, effectively reducing the drift to zero.
Second way of reading output voltage from sensor is by placing 0 ohm resistor on JP2 position labeled on PCB and reading analog value from AN pin on mikroBUS™. This way you can relay on external voltage reference and ADC with some other desired specifications for your application and you can measure light power intensity up to 14.1 mW/cm².
An SMD jumper labeled as VCC SEL can be moved to the desired position, allowing both 3.3V and 5V MCUs to be used with the UVC Click Board™.
SPECIFICATIONS
| Type | Optical,UVC Light |
| Applications | The UVC Click Board™ can be used for UV measurement applications, sterilization lamp monitoring, prototyping of wearables, handsets, and various consumer electronics based on received UV light |
| On-board modules | GUVC-T21GH |
| Key Features | UVC sensing with 12-bit resolution, High Sensitivity, Good Solar Blindness |
| Interface | Analog,I2C |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
PINOUT DIAGRAM
This table shows how the pinout on the UVC Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| Analog Voltage Output | AN | 1 | AN | PWM | 16 | NC | |
| NC | 2 | RST | INT | 15 | NC | ||
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| PWR | LD1 | - | Power LED Indicator |
| VCC SEL | JP1 | Left | Logic level voltage selection: left position 3V3, right position 5V |
| JP2 | Jumper | NP | Jumper for direct analog voltage reading from sensor |
TECHNICAL SPECIFICATION
| Characteristic | Value |
|---|---|
| UVC sensing resolution | 12-bit |
| Responsivity | 0.6mV/nW |
| Spectral Detection Range | 220nm - 280nm |
Frequently Asked Questions
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