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Post by buckwestern on Oct 18, 2018 9:41:04 GMT -8
Good day,
I have been searching for this, but I cannot seem to find the answer:
How do I connect a SunControl in place of the existing SunAirPlus in my GroveWeatherPi build?
Thank you.
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Post by SDL on Oct 23, 2018 12:41:39 GMT -8
In an existing build of GWP, just plug a grove cable into the I2C port of the SunControl (as you did for the SunAirPlus board) and the other cable into the I2C slot where SunAirPlus was plugged into.
Then you plug the Raspberry Pi into the Type A USB plug on the SunControl Board. SunControl replaces the SunAirPlus board and the USBPowerControl Board.
BP
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Post by buckwestern on Oct 23, 2018 15:33:42 GMT -8
Does this SunControl replace the dual watchdog board as well?
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Post by buckwestern on Oct 23, 2018 15:49:54 GMT -8
I plugged the board in and it seems to work, but I have another question, so please let me know where to redirect this. I am plugged into the wall and have a battery attached. How can I tell if the battery is charging? How can I tell if it is running correctly on AC power?
SunAirPlus Currents / Voltage
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LIPO_Battery Bus Voltage: 0.00 V
LIPO_Battery Shunt Voltage: 11.68 mV
LIPO_Battery Load Voltage: 0.01 V
LIPO_Battery Current 1: 116.80 mA
Battery Power 1: 0.00 W
Solar Cell Bus Voltage 2: 0.67 V
Solar Cell Shunt Voltage 2: 0.00 mV
Solar Cell Load Voltage 2: 0.67 V
Solar Cell Current 2: -0.00 mA
Solar Cell Power 2: -0.00 W
Output Bus Voltage 3: 5.11 V
Output Shunt Voltage 3: 27.92 mV
Output Load Voltage 3: 5.11 V
Output Current 3: 279.20 mA
Output Power 3: 1.43 W
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Post by SDL on Oct 25, 2018 16:11:14 GMT -8
Look for the current going into the battery. You don't have a battery plugged in. The current will be negative if you are charging. Without a battery plugged in, the numbers don't mean much.
BP
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Post by SDL on Oct 25, 2018 16:12:02 GMT -8
Buckwstern,
Yes, it can (there is a watchdog time on board the SunControl board) but it is more complicated.
BP
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Post by buckwestern on Oct 25, 2018 17:58:54 GMT -8
Look for the current going into the battery. You don't have a battery plugged in. The current will be negative if you are charging. Without a battery plugged in, the numbers don't mean much. BP ...but I do have a battery plugged in and it runs on that battery if I remove the AC power. |
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Post by buckwestern on Oct 28, 2018 6:42:17 GMT -8
any thoughts on this?
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Post by SDL on Oct 29, 2018 13:22:22 GMT -8
Your battery is showing 0.0V. Can you test it with a multimeter?
BP
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Post by SDL on Oct 29, 2018 13:23:09 GMT -8
I've never seen a SunAirPlus board fail this way. Check the battery level by using the pin on SunAirPlus so we can see it under load.
BP
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Post by buckwestern on Oct 29, 2018 18:40:04 GMT -8
I've never seen a SunAirPlus board fail this way. Check the battery level by using the pin on SunAirPlus so we can see it under load. BP This is one of the new SunControl boards. The battery measures 3.55V with a multimeter. Also I have used different batteries as well and it doesn't matter. I get the same results. |
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Post by SDL on Nov 1, 2018 8:08:33 GMT -8
Very interesting.
John would like this board back for testing, so we would like to replace it.
We will send you a new one.
Please send the board back and we will return a new SunControl board.
Send to:
SwitchDoc Labs
RMA #110118-01
909 S Shelley Lake Lane
Spokane Valley, WA 99037
Best,
BP
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Post by buckwestern on Nov 1, 2018 14:24:15 GMT -8
Very interesting. John would like this board back for testing, so we would like to replace it. We will send you a new one. Please send the board back and we will return a new SunControl board. Send to: SwitchDoc Labs RMA #110118-01 909 S Shelley Lake Lane Spokane Valley, WA 99037 Best, BP I have a SunAirPlus board as well. Should I try that to see if I get the same response? |
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Post by SDL on Nov 6, 2018 14:27:02 GMT -8
Definitely! Give it a try.
BP
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Post by buckwestern on Nov 12, 2018 11:16:30 GMT -8
I replaced the SunControl with a new SunAirPlus and after 2 days of 'charging', it reads like this:
SunAirPlus Currents / Voltage
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LIPO_Battery Bus Voltage: 4.10 V
LIPO_Battery Shunt Voltage: -0.12 mV
LIPO_Battery Load Voltage: 4.10 V
LIPO_Battery Current 1: -1.20 mA
Battery Power 1: -0.00 W
Solar Cell Bus Voltage 2: 0.78 V
Solar Cell Shunt Voltage 2: 0.00 mV
Solar Cell Load Voltage 2: 0.78 V
Solar Cell Current 2: -0.00 mA
Solar Cell Power 2: -0.00 W
Output Bus Voltage 3: 4.96 V
Output Shunt Voltage 3: 29.64 mV
Output Load Voltage 3: 4.96 V
Output Current 3: 296.40 mA
Output Power 3: 1.47 W
...so I guess the questions are:
1. Why did the SunControl run from the battery before?
2. Why did the SunControl not charge the battery when AC power was applied (same battery used)?
Thank you.
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