kingkevin
/
board
1
0
Fork 0
Code Issues Pull Requests Projects Releases 37 Wiki Activity

doc: add v4 and v5 tests

This commit is contained in:
King Kévin 2023-12-19 19:39:01 +01:00
parent 23e37ab06a
commit 0720961203
1 changed files with 30 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
CHANGELOG.md
View File

@ -1,3 +1,6 @@
TODO:
v5
--
@ -8,6 +11,15 @@ mainly changed parts for being ordered and assembled in larger batch:
- change spring terminal
- reroute accordingly
tests:
- I ordered the prototype in yellow, and while generally I don't like this color, here it suits the RJ45 port and other
black connectors.
- I feared the high screw terminal would be in the way of the cable to the spring terminals, but actually this is not an issue
issues:
- the ESP32-MINI-1U uses x.FL IPEX3/MHC3 antenna connector, instead of the classical u.FL MHC1 used by the ESP32-WROOM. IPEX3 pigtails are hard to find though. The ESP32-MINI-1U comes with a PCB antenna, which would avoid the issue, but it requires standard assembly, which the ESP32-MINI-1U does not.
v4
--
@ -15,9 +27,21 @@ changes:
- add WLED status LED visible when inside enclosure
- change ESP32-WROOM to ESP32-MINI on front for automated assembly
- change buck voltage regulator to LMR16030, limiting to 3A output, since the board can't dissipate the heat generted by 5A buck (even in highest efficiency)
- change buck voltage regulator to LMR16030, limiting to 3A output, since the board can't dissipate the heat generated by 5A buck (even in highest efficiency)
- now able to measure input voltage
tests:
I tested the DC to DC converter.
I drew 2.9 A (the ESP used additional 0.1A) for 20 minutes.
The board was not is a case, but there was no active (e.g. fan) cooling or heat sink.
The diode (hottest part) reached 104 deg. C, but was stable at that point.
Drawing over 3.0A caused the converter to switch off.
This is a built-in over-current protection.
It was a good decision to switch to a 3A regulator instead or 5A.
Although the diode is huge, and I used the regulator in high efficiency mode, the board gets quite hot (but that's usable).
I recommend limiting the LED power usage to 2.5A in WLED since the ESP can use 0.5A during WiFi communication.
v3
--
@ -83,6 +107,11 @@ changes:
- complete re-layout, more compact
- add I²S and PDM MEMS microphone (I²S is present because I did not test PDM yet)
issues:
- RX and TX are swapped
- DMX RX is connected to DMX TX through R7+R11. I wanted to both activated the LED, but did not think of the interconnection. Just remove R7 to light on TX activity, or R11 for RX activity.
v1
--