projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| 57bbb26e S |
1 | ------------------------------------------------------------------------------- |
| 2 | PCR800: OOK data | |
| 3 | ------------------------------------------------------------------------------- | |
| 4 | ||
| 5 | This is an example capture of an Oregon Scientific PCR800 rain sensor which | |
| 6 | transmits at 433.92 MHz using Manchester encoding and amplitude modulation. | |
| 7 | ||
| 8 | The signal was received by an RF Solutions RX12 superhet decoder chip and then | |
| 9 | passed to the logic analyser. | |
| 10 | ||
| 11 | In order to decode the Oregon v3 PCR800 you will need a preamble of '1111 ...' | |
| 12 | (default) in the ook decoder. Currently you can ook decode either a preamble | |
| 13 | of '1111 ...' or '1010 ...' but not both at the same time, so you can see | |
| 14 | Oregon v2.1 or v1/3 sensors. | |
| 15 | ||
| 16 | Details: | |
| 17 | http://www.oregonscientificstore.com/p-5-oregon-scientific-pcr800-wireless-rain-gauge-for-professional-weather-stations.aspx | |
| 18 | https://www.rfsolutions.co.uk/downloads/1481732062DS-AM-RX12.pdf | |
| 19 | ||
| 20 | ||
| 21 | Logic analyzer setup | |
| 22 | -------------------- | |
| 23 | ||
| 24 | The logic analyzer used was a USBee AX Pro / Saleae Logic clone (at 25kHz): | |
| 25 | ||
| 26 | Probe RX12 | |
| 27 | ---------------- | |
| 28 | 0 OUT | |
| 29 | 1 Output from Arduino running virtual BTHR968 | |
| 30 | ||
| 31 | ||
| 32 | Data | |
| 33 | ---- | |
| 34 | ||
| 35 | * oregon_pcr800.sr: | |
| 36 | Contains a single set of pulses that belong to an Oregon Scientific PCR800 | |
| 37 | rain sensor. These should decode as channel 0, battery OK, rainfall 0 | |
| 38 | in/hour, total 38.885 inches (since the battery was changed), checksum OK. |