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RS232 RS485 PM2.5 gas sensor acquisition module

RS-232 NTC Thermistor temperature sensor For WSN or IOT applications 1. Features: Temperature sensing and control for fridge/freezer applications. Area of refrigerator, freezor and evaporators suitable. Accurate thermistor ntc chip with Insulated wire. 2. Specifications: NTC thermistor sensor: RS-232 interface, Mini USB power input, R25=10KΩ, B25/50=3950K+1%, Working range: -20~105 C degree 3. Protocol: ASCII code 3.1 Packet format $[ID],[Name],[Sensor],[Alarm]# “$”: Start sign [ID]: 5 Bytes, factory defined [Name]: 15 Bytes, the item will be modified by the user, Default value: Name1=Temperature Name2=Humidity Name3=NTC [Sensor]: 4 Bytes Byte1: 0 (+, plus) or 1 (-, minus) Byte2,3: Integer Byte4: Decimal [Alarm]: 1 Byte 0: Normal condition 1: The sensor value exceeds the setting of the alarm range “#”: End sign 3.2 Command set (Case sensitive) (1) Name1=x..xx (Max. 15 Bytes ASCII) (2) Name2=x..xx (Max. 15 Bytes ASCII) (3) Name3=x..xx (Max. 15 Bytes ASCII) (4) Time=0~9 (5) ?: The command will display all the setting information. Include Name1, Name2, Name3 and Time setting. Customized design: 1. Sensor specification 2. Length 3. Protocol 4. PCBA 5. Housing Wireless communication options: 1. UHF 433 MHz RS-232 adapter 2. Bluetooth V2.1 SPP Class 1 RS-232 adapter, 100 meters 3. Bluetooth V4.0 BLE RS-232 adapter, support iOS & Android 4. WiFi RS-232 adapter (Broadcomm): wireless TCP/IP network 5. WiFi RS-232 adapter (MXCHIP): wireless TCP/IP network 6. Zigbee RS-232 adapter: Support Mesh network 7. Ethernet to RS-232 converter: wire TCP/IP network 8. Combined mode-1: UHF + WiFi, Bluetooth or Ethernet gateway 9. Combined mode-1: Zigbee + WiFi, Bluetooth or Ethernet gateway

RS485 WiFi serial converter, Modbus TCP RTU

WiFi RS-422/485 serial adapter  Model: WA-485E WiFi RS422, WiFi RS-422, WiFi RS485, WiFi RS-485 Features:  WA-485 adapter is built in the embedded TCP/IP and compatible with IEEE 802.11 b/g/n standard. The products will support the wide range of power supply from 4.5 to 24 VDC input. The high performance RF features will support long range of wireless coverage. The serial port will support RS-422 and RS-485 interfaces.  Ultra low power for battery powered applications  On-line firmware upgrade  Support Wi-Fi Protected Setup (WPS) Button  Supports Adhoc and infrastructure networking modes  Secure Wi-Fi authentication schemes (WEP/WPA/WPA2)  Full on board TCP/IP stack (no external drivers required)  Real-time clock for time-stamping, auto-sleep, and auto-wakeup modes  Configuration over serial or wireless interface using simple ASCII commands  Host Data Rate up to 921 Kbps TX, 500 Kbps RX for UART, up to 2Mbps over SPI slave  Specifications:  1. Networking Standards: 802.11b, 802.11g, 802.11n(single stream) 2. Data rates:   ● IEEE 802.11b, 1-11Mbps   ● IEEE 802.11g, 6-54Mbps  ● IEEE 802.11n(2.4GHz), 7.2-72.2 Mbps 3. Frequency Band: 2.4GHz 4. Modulation: OFDM, DSSS (Direct Sequence Spread Spectrum), DBPSK, DQPSK, CCK , 16QAM, 64QAM 5. Wi-Fi security: WEP, WPA, WPA2  6. Protocols: DHCP, DNS, ARP, ICMP, FTP client, HTTP client, TCP, UDP  7. Supply voltage: 5V DC  8. Output power: 0dBm to +12dBm  9. Power consumption: 4uA sleep, 35mA active RX, 180mA TX (at +12dBm)  10. Data rate: 9,600 ~921,600 bps over UART 11. Operating temperature: -40C to +85C  12. Transmit power:   ● +17dBm @802.11b  ● +13dBm @802.11g  ● +11dBm @802.11n 13. Antenna: 2 dBi dipole antenna (SMA) 14. Adapter Dimensions: 80 x 40 x 18 (mm) 15. White Box Dimension: 11 x 6 x 5 (cm) 16. Total Package Weight: 132 g 17. Package Contents:  ● WiFi RS-422/485 adapter x 1  ● 2 dBi dipole antenna x 1  ● A4 User manual x 1  ● USB Cable x 1 Product profile: • Power input: There’re two power inputs, mini USB or blue 2 ports block terminal. Please switch to choose one way to power the adapter. The max voltage is 24 VDC input from the blue block terminal.  • Block Terminal Connector: RX-/B  RX+/A  TX-  TX+ • Terminator: 2 pins   Open: Off   Close: On, Please connect the 2 pins with a cable to enable. • External Power Supply: GND (Power & Serial port) + : 4.5 ~24VDC  • Power switch: mini USB side by default. The user will switch to the blue 2 ports block terminal side if the power input comes from other sources. •  WiFi RS-422/485 Modbus •   WiFi RS-422/485 Serial-Setting •   WiFi RS-422/485 WiFi-Setting •   WiFi RS-422/485 Network-Setting •   WiFi RS-422/485 Applications •   WiFi RS-422/485 System •   WiFi RS-422/485 Connection •   WiFi RS-422/485 Network •   WiFi RS-422/485 Virtual-COM-port •   WiFi RS-422/485 Test Software • LED indication: Red:Indicates system ready Blue:Solid On: WiFi connected            Flash: data is transmitted through WiFi • WPS/Reset button: Please put the paperclip or small pin into the hole for pressing the button.  • WPS: Press the button in short time which is not longer than 3 seconds. • Reset to default setting: Press the button over 5 seconds, the WiFi adapter will reset to default value. The LEDs will be off for some time and then reboot to the default value.      Remark: All contents are subject to change without notice.  

RS232 Bluetooth BLE Active RFID RS232 Reader

Bluetooth V4.1 Low Energy Active RFID RS-232 Reader (Model: BLE-R) Active RFID Tag (Model: BLE-T) Application: 1. Location system: Asset, Passenger, Patient, Trailer 2. Access control: Garage, Enterprises, Bank, Vehicle, Factory, Hospital, Superstore, School, Warehouse 3. Logistic management, Cargo tracking, Airport baggage management 4. Local Area Real Time Location Systems (RTLS), indoor location system 5. Asset Management, Internet of Things (IOT) application Specifications: Frequency band  2.4GHz ISM ( 2.40000 – 2.4835GHz)  Microcontroller  32-bit ARM Cortex M0  On-air data rate  250 kbps, 1 Mbps or 2 Mbps  Modulation  GFSK  Output power  Programmable: +4 to -20dBm in 4dB steps  Sensitivity  -93dBm Bluetooth low energy -96dBm at 250kb -90dBm at 1Mbs -85dBm at 2Mbs Radio current consumption LDO at 1.8V  16mA – TX at +4dBM output power 10.5mA – TX at 0dBm output power 13mA – RX at 1Mbs Radio current consumption DC-DC at 3V  10.5mA – TX at +4dBm output power  8.1mA – TX at 0dBm output power  9.5mA – RX at 1Mbs System current consumption  420nA – No RAM retention  530nA - 8k RAM retention  2μA – All peripherals in IDLE mode  Hardware Security  128-bit AES ECB/CCM/AAR co-processor  BLE ADV: AD1 (Length, Type, Flags) BLE Advertising Flags AD2 Length fixed to 27 ( type + manufacturer spec data) AD2 Type fixed to 0xFF (for manufacturer) Manufacturer Spec Data manufacturer defined payload Manufacturer Spec Data: Field Description Field Offset MFG Code Manufacturer vendor code, fixed 0 Beacon Code Magic Code to identify packet format, fixed to 0xBCAA 2 Tag Type type of tag ex. 1: tag w/o g-sensor, 2: tag w/ g-sensor .. 4 Tag ID 6 bytes ID of tag 5 Tag Batt batt voltage of tag in 1/10 volt unit 11 Tag Button Status button status ex. 0: released, 1: pushed 12 Tag Motion Status motion status ex. 0: non-moving, 1: moving 13 Reserved reserved for sensor data (11 bytes) 14 Ref RSSI calibrated rssi at 1 M for approaching usage 25 Reader Output Format: $,,,,,,,# Field Description $ start of report msg type Type of message ex. 0: general scanner, 1: tag scanner  reader id 6 bytes ID of reader in hex => 12 chars tag type type of tag ex. 1: tag w/o g-sensor, 2: tag w/ g-sensor .. tag id 6 bytes ID of tag in hex => 12 chars tag batt batt voltage of tag in 1/10 volt unit tag button status button status ex. 0: released, 1: pushed tag motion status motion status ex. 0: non-moving, 1: moving reserved Reserved for external sensor data (11 bytes) tag rssi tag read rssi # end of report Reader UART is fixed at 115200,8,N,1 example: $1,E2C69918FD94,1,FFC98B7FC1A9,32,0,0,,-55# $1,E2C69918FD94,1,FFC98B7FC1A9,32,1,1,,-55# $1,E2C69918FD94,1,FFC98B7FC1A9,32,1,1,,-54# $1,E2C69918FD94,1,FFC98B7FC1A9,32,1,1,,-63# $1,E2C69918FD94,1,FFC98B7FC1A9,32,0,0,,-56# Default Tag Adv Period: 1000 ms Panic Mode Tag Adv Period: 300 ms Test Video:  http://youtu.be/Vs_hOSBHfns Remark: All contents are subject to change without notice.