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diff --git a/hw/lumintop/fw3x-lume1/README.md b/hw/lumintop/fw3x-lume1/README.md new file mode 100644 index 0000000..8609c49 --- /dev/null +++ b/hw/lumintop/fw3x-lume1/README.md @@ -0,0 +1,26 @@ +# Lumintop FW3X Lume1 + +A BLF FW3A with a new driver from LoneOceans. The new driver adds efficient +constant-current power regulation, RGB aux LEDs, and an upgraded temperature +sensor. + +## Notes of interest + +**Flashing firmware**: The MOSI and MISO pin are swapped, compared to a Hanklight. +LoneOceans sent a fixed driver design to Lumintop, but the new design didn't +get produced. So to flash firmware, swap the wires for those two pins first. + +**RGB mixup**: Lumintop seems to have swapped the wires for aux R and aux B. +This was fixed in firmware in 2023-12, but some lights were fixed in hardware +before that, so the firmware fix might cause the colors to be swapped again. + +**Turbo**: The driver uses regulation for levels 1 to 149, and level 150 is a +direct-drive FET. This is by design, and the FET cannot be ramped smoothly up +and down. Turbo is a single level at the top of the ramp, with a big sudden +drop to the next level. + +**Moon**: This light has a pretty bright preflash at moon level, and the +output is unstable so there is very visible ripple. The user can either raise +the ramp floor to a level high enough to avoid these issues, or learn to live +with the ripple and preflash. + |