Arexx – Module TL-3TSN

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Arexx TL-3TSN

Arexx TL-3TSN
Arexx TL-3TSN Standard Wireless Temperature Sensor

Transmitting Range: 50 meter (100 meter Fee field)
Measurement range: –30 to +80 Degrees Celsius, ± 0,5° to 1°.
Size (WxDxH in mm): 58x21x65

Standard radio temperature sensor for extending the logging system TL-500.


– PIC Microcontroller “RFPIC12F675” in een SSOP package.
– Analoge TEMP sensor “CNQY” in een 5SC70 package.
– Kristal 13.500 Mhz.

Arexx TL-3TSN hardware bewerkt

RF Chip

Op de chip hebben ze een klodder hars gegooid, wellicht om niet te kunnen achterhalen welke chip het is (??), met wat werk, kan je het eraf krabben, we zien dan de chip:

chip rfPIC12F675F-SSOP-20

microchip logo

Microchip PIC 12F675F (1k FLASH, 380 – 450 MHz ASK/FSK transmitter, SOIC-20)

The RFPIC12F675 devices pack Microchip’s powerful yet easy-to-program PICmicro® microcontroller architecture and a 434MHz ASK/FSK RF transmitter into a 20-pin package. In addition, it features a 4 channel 10-bit Analog-to-Digital (A/D) converter, one Comparator channel, and 128 bytes of EEPROM memory. The devices offer field re-programmability, small package outline, and low external component count to fit the most space-constrained applications.

  • 128 bytes of EEPROM Data Memory
  • Programmable pull-up resistors
  • ICD support
  • 4 oscillator selections including 4MHz RC oscillator with programmable calibration and Power-on Reset
  • Up to 10dBm transmit output power
  • Up to 40kbps data rate


  • Automotive Remote Keyless Entry (RKE) systems
  • Automotive alarm systems
  • Community gate and garage door openers
  • Burglar alarm systems
  • Building access
  • Low power telemetry
  • Meter reading
  • Tire pressure sensors
  • Wireless sensors
  • Antenna Connector:PCB, Surface Mount
  • Applications:RKE, Security Systems
  • Current – Transmitting:14mA
  • Data Interface:PCB, Surface Mount
  • Data Rate (Max):40 kbps
  • Frequency:380MHz ~ 450MHz
  • Memory Size:1024 x 14 Words Flash, 128 x 8 Byte EEPROM, 64 x 8 Byte SRAM
  • Modulation or Protocol:ASK, FSK
  • Operating Temperature:-40°C ~ 85°C
  • Package / Case:20-SSOP (0.209″, 5.30mm Width)
  • Packaging:Tube
  • Power – Output:10dBm
  • Voltage –


chip rfPIC12F675F-SSOP-20 pinout

TEMP Sensor

5SC70 package

Daar staat op CNQY, ik kan zo niet achterhalen welke chip het is, het kan bijvoorbeeld zijn de LM20 of 5SC70, etc.


Arexx TL-3TSN hardware
Rev 059