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วิดีโอแสดงการใช้งาน


Datasheet

http://www.sah.rs/media/sah/techdocs/xy-md02-manual.pdf


ตัวอย่าง Code ESP32 + RS485 to TTL + SHT20
/* -------------------------------------------------------------------------- */
/* ModuleMore SHT20 (Modbus) Example code */
/* -------------------------------------------------------------------------- */

/* ------------------------------- วิธีการต่อ ------------------------------- */
/**
* ESP32 ---> MAX485 ---> XY-MD02
* 3.3V 3.3V
* GND GND -
* 21 RX
* 22 TX
* 5V +
* A A
* B B
**/

Full code : https://gist.github.com/fxprime/7e72c337d82aa0fec8f9a9a84997ad8d




Description:
Product adopts industrial-grade chip, high-precision SHTC3 temperature and humidity sensors, ensure the products with good reliability, high precision and interchangeability.
Adopt RS485 hardware interface (with the lightning protection design), the protocol layer compatible with standard industrial Modbus RTU protocol.
This product integrating MODBUS protocol and ordinary UART communication protocol, users can choose communication protocols, UART communication support automatic report function (Connect the RS485 serial interface mode tool by automatically output temperature and humidity).


2.Features:
1>.Support MODBUS RTU protocol
2>.RS485 supports 1000 meters communication
3>.Standard DIN35 mounting rails
4>.High precision
5>.Industrial products, high progress SHTC3 temperature and humidity sensor, the RS485 communication
6>.Standard MODBUS protocol and ordinary protocol, the user can choose communication protocol
7>.Baud rate can decide for themselves
8>.General agreement with automatic upload function, upload speed can decide for themselves


3.Parameters:
1>.Product Name:Modbus RTU RS485 SHTC3 Temperature Humidity Transmitter
2>.Product Number:XY-MD02
3>.Working Voltage:DC 5V~30V
4>.Output signal:RS485 signal
5>.Communication protocol:Modbus RTU and ordinary protocol
6>.Communication address:1~247(default 1)
7>.Temperature Range:-40℃~60℃
8>.Temperature Precision:+/-0.5℃
9>.Temperature Resolution:0.1℃
10>.Humidity Range:0%RH~80%RH
11>.Humidity Precision:+/-3%RH
12>.Humidity Resolution:0.1%RH
13>.Power:<0.2W
14>.Work Temperature:-40℃~85℃
15>.Work Humidity:0%~95%RH
16>.Size:65*46*28.5mm


4.Using Steps:
1>.Connect signal receiver such as for Arduino to RS485 terminal.
2>.Input power supply at power terminal.
3>.According to the acquired data, the data is processed differently according to actual needs.


5.Note:
1>.Users need to prepare their own ModBus debugging tool and RS485 debugger.
2>.Users needs to complete write code according to the communication protocol and commands if using the controller to receive data.


6.Application:
1>.Factory Detect
2>.Equipment box Detect
3>.Environmental test
4>.Home security


7.Package:
1>.1pc Modbus RTU RS485 SHTC3 Temperature Humidity Transmitter;
 
Product type: Gauges
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Exchange or return policy



Every item comes with a 30-day warranty. However, there are certain conditions that apply:

  1. The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).

  2. The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).

  3. The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.

Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:

  1. Provide a detailed description of the damaged item(s).
  2. Mention any tests or experiments conducted by the customer.

Please note that the store reserves the right to make the final decision regarding product replacement or refund.

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Arduino compatible board, Iot, ESP32, ESP8266, Nodemcu, Raspberry pi, micro:bit and etc.
Mobile number : 0831710868
E-mail : paheyisoicus@gmail.com
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