OpenAWOS - Revision history

Elijah at 21:13, 18 December 2018

2018-12-18T21:13:11Z

← Older revision		Revision as of 21:13, 18 December 2018
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			[[File:Open_awos_inside.jpg\|thumb\|OpenAWOS]]
	==Overview==		==Overview==
	The idea for this project was to build a simple weather station for our glider field that could report surface wind speed over the radio similar to the AWOS you find at a normal airport. It needs to share the same channel as our CTAF though so it can only be on-demand and not a continuous broadcast. I found some Vaisala ultrasonic anemometers on eBay for a can't-refuse price and then designed the rest of this system around that. Two of the three appear to be in new condition. My hope is that being a professional grade sensor with no moving parts, they will withstand the elements better than past anemometers have. Interfacing to them is pretty easy. One of the modes they can be configured to outputs NMEA strings over RS232. Python code on the pi parses these messages and does some simple averaging.		The idea for this project was to build a simple weather station for our glider field that could report surface wind speed over the radio similar to the AWOS you find at a normal airport. It needs to share the same channel as our CTAF though so it can only be on-demand and not a continuous broadcast. I found some Vaisala ultrasonic anemometers on eBay for a can't-refuse price and then designed the rest of this system around that. Two of the three appear to be in new condition. My hope is that being a professional grade sensor with no moving parts, they will withstand the elements better than past anemometers have. Interfacing to them is pretty easy. One of the modes they can be configured to outputs NMEA strings over RS232. Python code on the pi parses these messages and does some simple averaging.

Elijah at 06:15, 23 November 2017

2017-11-23T06:15:37Z

@@ Line 1: / Line 1: @@
 ===Data connector pinout===
 {| class="wikitable"
 |-

Elijah: Created page with "===Data connector pinout=== {| class="wikitable" |- ! Pin ! Desc |- | 1 | +12v |- | 2 | TX out to WS425 |- | 3 | RX in from WS425 |- | 4 | N/C |- | 5 | Gnd |- | 6 | N/C |- | 7..."

2017-11-04T06:36:58Z

Created page with "===Data connector pinout=== {| class="wikitable" |- ! Pin ! Desc |- | 1 | +12v |- | 2 | TX out to WS425 |- | 3 | RX in from WS425 |- | 4 | N/C |- | 5 | Gnd |- | 6 | N/C |- | 7..."

New page

===Data connector pinout===
{| class="wikitable"
|-
! Pin
! Desc
|-
| 1
| +12v
|-
| 2
| TX out to WS425
|-
| 3
| RX in from WS425
|-
| 4
| N/C
|-
| 5
| Gnd
|-
| 6
| N/C
|-
| 7
| N/C
|-
| 8
| One-wire Data
|-
| 9
| +3.3v
|}