soil_moisture_meter
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| soil_moisture_meter [2015/01/06 17:36] – [Partlist (in buildup order)] breaker27 | soil_moisture_meter [2015/01/06 18:59] – [Buildup of PCB] breaker27 | ||
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| - Now connect a multimeter to **check the power consumption**. Press the button when the device starts up. The device will blink some seconds very fast and then go to power down mode. **The device should draw only ~0.1µA.** If the current is much higher, you may have a short circuit somewhere. | - Now connect a multimeter to **check the power consumption**. Press the button when the device starts up. The device will blink some seconds very fast and then go to power down mode. **The device should draw only ~0.1µA.** If the current is much higher, you may have a short circuit somewhere. | ||
| - Solder the debug TX pin, the RFM12B module and antenna with a soldering iron as usual. | - Solder the debug TX pin, the RFM12B module and antenna with a soldering iron as usual. | ||
| + | - Switch on the device and check power consumption again. With connected RFM12, it should now be ~1.7µA. | ||
| {{https:// | {{https:// | ||
soil_moisture_meter.txt · Last modified: 2015/01/29 22:43 by breaker27