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Right. Sorry for not being clear:
I soldered all the SMD parts: the ESP32, SMD capacitors C4-C8, Pull-Up resistors, D2 and Q1, and the Vreg. Didn't connect any other devices (LCD, relay, anything else).
Connected the ESP32 programmer, which provides 3V3, GND as well as RST(EN), IO1(BOOT), Tx and...
This is my first board design with the S3. Previous boards with ESP32 worked fine.
Tried to do the same, but I probably missed something:
So I connected 3V3, GND and pulled up EN and IO0.. Connected pads 13 and 14 to Tx and Tr, and some other pins to some other devices.
Someone suggested that I...
Here is an updated version of the board, with a greater clearance between the power lines.
main questions:
1. Are the components I chose for the power sections (RV1, C2, C3, FL1 and RV3) are going to do the job?
2. Are there any major errors in the PCB design?
thanks!!!
Thank you @KlausST for your quick replay.
I have implemented your feedback 1:1 to the best of my understanding, which means I might misunderstood something.
Not sure if the components I chose, mainly for both the verisitors, are the correct parameters, so I noted them on the plan
hoping to get...
I am building an SMD soldering hot plate station. I got good results when prototyping this, using this guy, which is a 100x200 500W.
Since I am a novice, definitely in 220V, I wanted a hint on how to protect the components against bursts when the relay disconnects the hot pad.
I see some...
You got it right. Now, i after installing the bridge + C5 (470uF 24V) and C7 (25V 1uF MLCC) I am getting a noise at a range of between 500mv and 1V.
Does this make sense in this phase or something is already off?
So I ordered and received the board and components as prescribed by the good doctors abovementioned.
But I am still running into newbie issues:
After fully soldering the first board, I got a very jumpy voltage at the ESP32. It worked, but not smoothly.
So I decided to build the board step by...
So, we are getting there, or at least this is how it feels, thanks to your great guidance.
Here is what I did figure out:
1. @betwixt remark about removing GND lines - done.
2. @KlausST's re-moving GND vias next to the GND pad - done.
3. The only thing I am struggling with about this is...
Wow. Okay. Did my homework.
1. Based on @D.A.(Tony)Stewart recommendation on lossy coil, changed L1 to this https://www.lcsc.com/product-detail/Power-Inductors_cjiang-Changjiang-Microelectronics-Tech-FNR8040S680MT_C168140.html . Hope it is a correct one.
2. Re- "recognized that the coil...
Thanks again. You are my heroes!
@D.A.(Tony)Stewart:
1. Did you mean L1 (the only one I currently have) or add another one?
2. Would this be a good candidate to what you had in mind? https://www.lcsc.com/product-detail/Power-Inductors_APV-APSWPA6028S330MTF_C5363728.html
@betwixt :
1. Done...
So I took all of the advice I was given by you guys (at least the ones I could figure out) and created a 2.0 version of my controller and sensor (both share the exact same schematic minus the relays for the sensor).
Before sending it to printing, I would like your feedback on the PCB design...
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