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Big Update! (Patreon)

Published:
2019-03-04 15:35:19
Edited:
2019-03-04 15:36:00
Imported:
2026-11
Tags:

Content

Hey Guys!

Usually, if there is silence from me I'm preparing big stuff. This time shall be not different.
Yesterday, if you missed the Maker Cast s01e02 ( https://www.youtube.com/watch?v=OC9KuznvMs4&list=PLjUbKCHhzPExbaaFm7bhkFP-dv3nD02Y2&index=2 ). I was talking about my frustration with slow shipping of my boards and that I have finally started debugging my ESPROG

1. Tantalum cap was wrong way in. That caused the regulator to burn.
2. Easy EDA made me pick the wrong voltage regulator (2.5V).
3. A misinterpretation of the USB IC data sheet lead to an unconnected pin that should be pulled up.
I salvaged a 3.3 regulator from a wemos donor board and attached a "bodge wire" to the pin. It was right next to my 3.3 line so I just needed to bridge the solder mask with a bit of wire. I didn't cut the leg of the resistor that I used as a wire since it looks so funny.

Seon suggested replace the tantalum cap by a ceramic one. I'm using 10uF now. The data sheet seems to be happy with 1uF any suggestions there?

It's tested and works like a charm:  

I created the part in easy EDA with both footprints SMD/TH if you need it for your designs. Fixed the bug and also the silkscreen on two places where the orientation indicator was lost. New batch is ordered already and I will start talking with PCBWay as soon I'm confident it's in a good state.

Next good news is that the VGA boards have arrived and are functional. I soldered one of the kits


It's a first alpha version as long it didn't prove robust. I have parts and boards for 100 kits of wich one part will finance the next round and one part is for you. As I mentioned before I will send out one of the kits to everyone of you who want's one and have reached a certain lifetime support since the count is limited for now. But no worries, the rest will be covered with the next batch. All you need is a soldering iron and an ESP32 MINI KIT (or compatible)
http://s.click.aliexpress.com/e/8fMcA6M

Just tell me in the comments if you are interested or send me a personal message

I will also give an update as soon the tindie store is up :-)

Files

Comments

AnthonyRussell

HI, am interested but not sure if I have reached the support limit but keep me in mind for future batches. The board looks great!

123

Well done!

Bits & Bytes

Great Stuff. Great Work. Chapeau!

Bryan Siepert

Totally interested in a VGA kit!

BolverBlitz

Will there be a discount for patreons if you ship them? :D *Duck und weg*

Ristomatti Airo

Great work! I probably don't count in on the priority list but would definitely be interested in the SMD VGA kit! Or even two if not too expensive (would be my first SMD soldering...). But what was the other board, the ESP32 programmer? Also how did EasyEDA made you pick the wrong voltage cap? Did it show a different value?

Ristomatti Airo

I'd love to see a sideway close up photo of the bare ESP32 module on the breadboard!

bitluni

the vga is completely trough hole. the programmer is setting up for future developments. I can make smd kits and you don't need to solder all the small parts for the usb ervery time. the module can be soldered directly on the board. nothing else is needed to get a bare esp32 wroom or wrover running. the pins are layed out such that you could use it for home etched single sided boards. I was looking for for a regulator in the lib and it seemed to list the regulator. I was looking for 3.3 and there are also 3.3v types of the same part. if it was in the description then it was listed as well. Learned lesson to check the datasheet carefully

Ristomatti Airo

Haha! So it really sits in thin air like it seemed to! :D

bitluni

Patreons will get one free. If there is not enough in the first batch for the fresh supporters They need to be a bit patient. I can give a discount but I rather sell them for the full price and ramp up the production and send one free from the next batch

Simon Popp-Schraut

I'm also interested in a kit. I'd like to start experimenting with the VGA stuff, it could be a cheap and easy way to bring some (more or less useful) use to old monitors, for example by displaying some information like weather etc. Keep up the good work!