GY-39 MAX44009 Light Intensity BME280 Sensor
$25.201pcs
GY-39 MAX44009 light intensity BME280 sensor for one step access to light temp humidity and pressure data. Great for weather monitoring smart home and greenhouse use.
| Dimensions | 26.7 × 24.3 mm |
|---|---|
| Brand |
easyelecmodule |
4820 in stock
Product Feature
Pressure, temperature and humidity, light intensity sensor mode, working voltage 3-5V, low power consumption, easy installation. Its working principle is that the MCU collects data from various sensors, processes them uniformly, and directly outputs the calculated results. This module has two ways to read data with serial port baud rates of 9600bps and 115200bps. It can be configured with two modes: continuous and inquiry output. It can save settings during power loss, adapt to different working environments,connect with microcontrollers and computers, and the module can also be equipped with sensor modules.
Product Parameter
| High cost-effectiveness, built-in MCU for processing sensor data, IIC, serial communication format, unified data transmission, equipped with corresponding upper computer software. | |
| Communication method | MCU IIC/MCU serial sensor chip |
| Temperature measurement range | -40 ~ 85℃ |
| Humidity measurement range | 0 ~ 100% |
| Light intensity measurement range | 0.045 lux ~ 188,000 lux |
| Air pressure measurement range | 300 ~ 1100 hPa |
| Corresponding frequency | 10 Hz |
| Operating voltage | 3 – 5V |
| Operating current | 5mA |
| Storage temperature | -40 ~ 125℃ |
MAX44009 Pin Definition
| Pin1 | VCC | Power supply (3v ~ 5v) |
| Pin2 | CT | Serial port UART_TX/IIC_SCL |
| Pin3 | DR | Serial port UART_RX/IIC_SDA |
| Pin4 | GND | Ground |
| Pin5 | NC | Reserved, do not connect |
| Pin6 | INT | MAX44009 light intensity chip interrupt. When S1=0 and connected to GND, it is enabled. |
| Pin7 | SDA | Chip data bus S1=0 (enabled when connected to GND) |
| Pin8 | SCL | Chip clock bus S1=0 (enabled when connected to GND) |
| PinA | S0 | Serial port/MCU_IIC mode selection. |
| PinB | S1 | It is only for using the sensor chip. |
Note : ① PinA(S0) selects the module working mode by hardware, Pin2(CT) and Pin3(DR) are the communication interfaces of GY-39 module.
| S1=1 (Default) | UART serial port mode, Pin2 is TX, Pin3 is RX, TTL level |
| S1=0 (When connected to GND) | MCU_IIC mode, Pin2 is SCL, Pin3 is SDA |
Note: ② PinB(S1) is only used for the sensor chip BME280+MAX44009 mode to select whether the MCU participates in data processing.
| S1=1 (Default) | MCU + Chip mode, Pin7 and Pin8, no connection of any kind |
| S1=0 (When connected to GND) | Chip-only mode, Pin7 is the chip SCL bus, Pin8 is the chip SDA bus |
Relative Information
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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