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| Notify when batteries getting too low |
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| fixit7:
--- Quote from: mariush on June 15, 2019, 05:52:52 am ---A 6-8 pin microcontroller could measure voltage and optionally disable light when voltage goes below some threshold.. could have a tiny led blink when low. You could start with an Arduinno and learn some stuff... --- End quote --- Thanks marjush. I will look for an Arduinno and learn more. Andy |
| sleemanj:
--- Quote from: fixit7 on June 15, 2019, 01:39:23 pm --- --- Quote from: sleemanj on June 15, 2019, 05:00:40 am ---A simple cell monitor device https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190614205829&SearchText=lipo+cell+monitor cycles through each series cell and displays it's voltage, typically handle 2-8 cells --- End quote --- Thanks sleemanj. I would like to find a connector for that monitor. I saw one picture that showed 3 connectors going to the batteries. I can see 2 leads for the + and -, but do not understand what the 3rd connector is for ? https://www.aliexpress.com/item/DTXMX-RC-Cell-Checker-BB-ring-Lipo-battery-low-voltage-alarm-Voltage-Indicator-volt-meter-monitor/32843043047.html?spm=2114.search0104.3.35.24231be7aFCOWq&ws_ab_test=searchweb0_0,searchweb201602_10_10065_10130_10068_10547_319_10546_317_10548_10545_10696_10084_453_454_10083_10618_10307_537_536_10059_10884_10887_321_322_10103,searchweb201603_52,ppcSwitch_0&algo_expid=b4922bd1-c709-403c-9a99-2ad648d9c504-5&algo_pvid=b4922bd1-c709-403c-9a99-2ad648d9c504&transAbTest=ae803_5 --- End quote --- Most negative, next most negative, third most negative... most positive |
| TK:
There are ICs that monitor LiPo batteries like TI BQ2023: BQ2023 (NRND) Single-Wire Advanced Battery Monitor IC for Cellular and PDA Applications |
| fixit7:
--- Quote from: sleemanj on June 15, 2019, 01:52:16 pm --- --- Quote from: fixit7 on June 15, 2019, 01:39:23 pm --- --- Quote from: sleemanj on June 15, 2019, 05:00:40 am ---A simple cell monitor device https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190614205829&SearchText=lipo+cell+monitor cycles through each series cell and displays it's voltage, typically handle 2-8 cells --- End quote --- Thanks sleemanj. I would like to find a connector for that monitor. I saw one picture that showed 3 connectors going to the batteries. I can see 2 leads for the + and -, but do not understand what the 3rd connector is for ? https://www.aliexpress.com/item/DTXMX-RC-Cell-Checker-BB-ring-Lipo-battery-low-voltage-alarm-Voltage-Indicator-volt-meter-monitor/32843043047.html?spm=2114.search0104.3.35.24231be7aFCOWq&ws_ab_test=searchweb0_0,searchweb201602_10_10065_10130_10068_10547_319_10546_317_10548_10545_10696_10084_453_454_10083_10618_10307_537_536_10059_10884_10887_321_322_10103,searchweb201603_52,ppcSwitch_0&algo_expid=b4922bd1-c709-403c-9a99-2ad648d9c504-5&algo_pvid=b4922bd1-c709-403c-9a99-2ad648d9c504&transAbTest=ae803_5 --- End quote --- Most negative, next most negative, third most negative... most positive --- End quote --- I do not understand your post. Andy |
| fixit7:
--- Quote from: TK on June 15, 2019, 02:03:09 pm ---There are ICs that monitor LiPo batteries like TI BQ2023: BQ2023 (NRND) Single-Wire Advanced Battery Monitor IC for Cellular and PDA Applications --- End quote --- Thanks TK. Andy |
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