I've have several 2477D dimmer switches that I've used for years that now flash full bright every 10 minutes. I know what the cause is and just want to share my findings.
I've been developing my own intelligent home system for years based on Raspberry Pis running Raspbian and a 2413S INSTEON modem. I recently installed a 2441TH thermostat and updated my code to interface to it, including periodic polling (every 10 minutes) for it's status, temperature, set point, etc. If the lights controlled by the 2477D are on but dimmed, they flash bright each time I do a poll of the thermostat. My trace for a poll of the set point looks like:
-- Sent To: 0x526811, Msg. Type: SD [Direct] , Cmd: icc_thermostat_status (0x6a/0x20) - 00000000 02 62 52 68 11 0f 6a 20
-- Returning To: 0x526811, Msg. Type: SD [Direct] , Cmd: icc_thermostat_status (0x6a/0x20) - 00000000 02 62 52 68 11 0f 6a 20 06
-- Received From: 0x526811 To: 0x49942a, Msg. Type: SD ACK , Cmd: icc_thermostat_status (0x6a/0x6a) - 00000000 02 50 52 68 11 49 94 2a 2b 6a 6a
where the thermostat is Dev. ID is 0x526811 and the modem Dev. ID is 0x49942a
BTW, I poll simply because. from past experience with various forms of networking, sometimes a status changed broadcast from the thermostat *will* get missed, and I want to make sure my application and the thermostat stay in sync.
I've been developing my own intelligent home system for years based on Raspberry Pis running Raspbian and a 2413S INSTEON modem. I recently installed a 2441TH thermostat and updated my code to interface to it, including periodic polling (every 10 minutes) for it's status, temperature, set point, etc. If the lights controlled by the 2477D are on but dimmed, they flash bright each time I do a poll of the thermostat. My trace for a poll of the set point looks like:
-- Sent To: 0x526811, Msg. Type: SD [Direct] , Cmd: icc_thermostat_status (0x6a/0x20) - 00000000 02 62 52 68 11 0f 6a 20
-- Returning To: 0x526811, Msg. Type: SD [Direct] , Cmd: icc_thermostat_status (0x6a/0x20) - 00000000 02 62 52 68 11 0f 6a 20 06
-- Received From: 0x526811 To: 0x49942a, Msg. Type: SD ACK , Cmd: icc_thermostat_status (0x6a/0x6a) - 00000000 02 50 52 68 11 49 94 2a 2b 6a 6a
where the thermostat is Dev. ID is 0x526811 and the modem Dev. ID is 0x49942a
BTW, I poll simply because. from past experience with various forms of networking, sometimes a status changed broadcast from the thermostat *will* get missed, and I want to make sure my application and the thermostat stay in sync.