From b4ee716c0026cf997cde36ef00720d63a4c62c0c Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 28 Mar 2019 22:29:21 -0700 Subject: [PATCH] doc: Document LEDs on TeleGPS devices V1 has just the battery charger. V2 adds the GPS lock indicator. Signed-off-by: Keith Packard --- doc/telegps-using.inc | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/doc/telegps-using.inc b/doc/telegps-using.inc index 1dd889cd..b21445fc 100644 --- a/doc/telegps-using.inc +++ b/doc/telegps-using.inc @@ -52,7 +52,24 @@ onboard flash before it fills up. TeleGPS will still report telemetry even if memory is full, so the only thing you will lose is the on-board data log. - + + === LEDs + + TeleGPS v1.0 has a dual greed/red LED along the edge + towards the USB connector end of the board. This + indicates battery charging status while connected to + power over USB. When the red LED is lit, the battery + is charging. Once the battery is fully charged, the + red LED goes out and the green LED turns on. If both + LEDs are lit, something is probably wrong with the battery. + + TeleGPS v2.0 has the same green/red battery charging + status LED and adds another green LED along the same + edge, towards end of the board with the 70cm + antenna. This green LED indicates GPS lock status — it + blinks once every three seconds when the GPS receiver + is locked and tracking position. + === Installation The battery connectors are a standard 2-pin JST -- 2.30.2