Peter Jakobs / RGBWW Controller - History

created a bit more room for a sliding mount by moving the decoupling caps C2 and C5 in a bit.

added six pin connector for programming

changed the three pin programming header to a six pin version, allowing to directly plug in one of the universal FTDI based USB to UART adaptors.
Pinout is:
1: GND
2: NC
3: NC
4: RX
5: TX
6: NC

with RX and TX being from the ESP's point of view and Pin1 being on the far side from the ESP.

This is currently untested. There was some moving around of components on the DC/DC converter but I don't think that made for any substantial change

minor change

one of the GND traces (between R2 and R3) underneath the top ground plane was not connected - doesn't make a change in the final board since it's one copper layer anyway.

fixed a pretty embarassing error

I had one ground trace clip one of the PWM output pads.

minor routing changes

updated a few minor routings (clr) and added some more copper areas (GND around DISABLE & D1)

cosmetical correction

beautified the crossing of RXD and TXD

updated Gerber Files and Pictures

exported Gerber Files, shot a few new pictures of the board.
Unlike the Beta Boards, this version does not have pads for an R/C snubber as I don't think it will be necessary. Also, there's a larger GND area covering the top layer input side of the circuit and the 3V3 area around C1 has been expanded..
The TXD and RXD pins have switched places, it was easier to route them like that and also, their location now crosses over with the usual USB/UART converters (straight cable run).
On the disable jumper location, the pins have also switched places, disable is now on the top, pointing away from C3

yet more minor changes on the input side

removed the snubber pads
created a lower impedance GND path
swiched RXD and TXD for some more elegant routing and better fit with the usual USB/UART connectors (straight cable now switches RX/TX)
minor silkscreen corrections for better legibility

more board improvements

- floodfills for VCC, PH and top layer +3V3 nods
- RC snubber for PH node
- additional 10nF cap close to the ESPs 3.3V
- cleaned up the GND layer a bit