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pro2_transmitter [2018/09/26 17:08]
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pro2_transmitter [2018/09/28 17:16]
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 Each WeatherDuino transmitter comprises a single printed circuit board (PCB) approximately 100mm x 60mm. The PCB has two main functions. First, it provides an interface to a number of sensors via connectors mounted around two sides of the board. Second, it provides a radio frequency (RF) link between an Arduino Nano microcontroller and a remote WeatherDuino receiver. Two RJ45 Ethernet-style sockets provide connections to a rain sensor and an anemometer. Many low-cost wind/rain sensors use these connectors so it is often possible to re-use redundant hardware. Each WeatherDuino transmitter comprises a single printed circuit board (PCB) approximately 100mm x 60mm. The PCB has two main functions. First, it provides an interface to a number of sensors via connectors mounted around two sides of the board. Second, it provides a radio frequency (RF) link between an Arduino Nano microcontroller and a remote WeatherDuino receiver. Two RJ45 Ethernet-style sockets provide connections to a rain sensor and an anemometer. Many low-cost wind/rain sensors use these connectors so it is often possible to re-use redundant hardware.
  
-**Insert image TxPCB.png here?**+{{:​wiki:​txpcb.png|}}
  
-Apart from the rain gauge and anemometer, the PCB provides inputs for two analogue sensors (nominally solar radiation & UV), and three digital inputs (two I2C). It also has a 9 volt output which may be turned on and off by the WeatherDuino software. A typical use for this would be to control the fan in an aspirated radiation shield. The PCB has a space for a line driver IC which may be needed if the I2C sensors are not mounted close to the transmitter. It's a good idea to fit a DIL socket in this position so that the IC can be easily fitted later if needed.+Apart from the rain gauge and anemometer, the PCB provides inputs for two analogue sensors (nominally solar radiation & UV), and three digital inputs (two I<​sup>​2</​sup>​C). It also has a 9 volt output which may be turned on and off by the WeatherDuino software. A typical use for this would be to control the fan in an aspirated radiation shield. The PCB has a space for a line driver IC which may be needed if the I<​sup>​2</​sup>​C ​sensors are not mounted close to the transmitter. It's a good idea to fit a DIL socket in this position so that the IC can be easily fitted later if needed.
  
 RF communication is provided by a small daughter board located near the SMA aerial socket. Other major components on the PCB are a voltage regulator and a MosFET transistor which controls the external power feed. One very useful feature of the transmitter board is a temperature sensor. Although this is not as accurate as the off-board temperature sensor(s) it does provide an indication of conditions in the transmitter box. RF communication is provided by a small daughter board located near the SMA aerial socket. Other major components on the PCB are a voltage regulator and a MosFET transistor which controls the external power feed. One very useful feature of the transmitter board is a temperature sensor. Although this is not as accurate as the off-board temperature sensor(s) it does provide an indication of conditions in the transmitter box.
  
-**Document under construction… please come back later.** 
  
 ====== Where I can get the WeatherDuino Pro2 Transmitter?​ ====== ====== Where I can get the WeatherDuino Pro2 Transmitter?​ ======
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