Search found 18 matches

by Chevelle
Mon Jan 29, 2024 8:42 pm
Forum: ESP-IDF
Topic: I2S Audio Crackling / Pops
Replies: 4
Views: 7921

Re: I2S Audio Crackling / Pops

I am not sure what causes the pop at the beginning of a play but I do know that if the library supports the use of the SD line, that can be mitigated. The crackling is most likely cause by ringing on the LRC, BCLK, and/or the DIN lines. Just add small resistors in each of those lines and that should...
by Chevelle
Sun Jun 19, 2022 10:26 am
Forum: Hardware
Topic: Using the ESP32-C3 SOC, Not Module
Replies: 2
Views: 1553

Re: Using the ESP32-C3 SOC, Not Module

Perfect. Thanks very much.
by Chevelle
Sat Jun 18, 2022 11:30 am
Forum: Hardware
Topic: Using the ESP32-C3 SOC, Not Module
Replies: 2
Views: 1553

Using the ESP32-C3 SOC, Not Module

I am a big fan the the ESP32 product line. I have plenty of experience starting with the development kits through various modules. I have a new project that does not need the BLE or WiFi functions and I was thinking of using the ESP32-C3 SOC. I haven't found any resourse material other than the IC d...
by Chevelle
Sun Dec 19, 2021 9:03 pm
Forum: ESP32 Arduino
Topic: Servo Library for ESP32-C3
Replies: 0
Views: 3776

Servo Library for ESP32-C3

I am working on a project that used an ESP32-C3-WROOM that will control a servo. The most popular library for EPS32 servo control seems to be ESP32Servo by J.K Bennet. I am having trouble getting it to work. Even the simple sample program "Sweep" doesn't work. (It compiles and loads but the pulses a...
by Chevelle
Sat Dec 11, 2021 4:34 pm
Forum: Hardware
Topic: ESP32-S2 custom board troubel with serial bootloader
Replies: 2
Views: 3541

Re: ESP32-S2 custom board troubel with serial bootloader

The documentation isn't all that obvious but careful attention needs to be paid to the state of the strapping pins. I looks like both GPIO45 and GPIO46 should be low for boot loading. Give that a try.
by Chevelle
Tue Dec 07, 2021 12:54 pm
Forum: Hardware
Topic: ESP32-C3 using dev module circuitry on custom board
Replies: 5
Views: 9025

Re: ESP32-C3 using dev module circuitry on custom board

Harbaughfan, (I won't hold that against you.) Glad to see that your project worked out. Mine did as well although I made a few different decisions. I too used the DEV board schematic as a guide and had no trouble with the NC or zero value components. I used all 1206 components. I bought a resistor a...
by Chevelle
Mon Dec 06, 2021 10:44 pm
Forum: Hardware
Topic: Issues when battery powered
Replies: 5
Views: 8011

Re: Issues when battery powered

OK. I get where you are going but what you are showing in your schematic is not the way to get there. First off, 4 AA batteries at 1.2V each gives a total of 5.8 volts. That gives your 5V regulator only 0.8V to work with. I see that it is an LDO but that still isn't much margin and it will go away a...
by Chevelle
Mon Dec 06, 2021 10:24 pm
Forum: Hardware
Topic: Number of Servo PWM Pins on ESP32-C3
Replies: 2
Views: 7798

Re: Number of Servo PWM Pins on ESP32-C3

Thanks. On with the project!
by Chevelle
Fri Dec 03, 2021 1:50 pm
Forum: ESP32 Arduino
Topic: ESP32-S3 Servo Question
Replies: 2
Views: 6731

Re: ESP32-S3 Servo Question

Thanks very much. I would have preferred a different answer but a correct one is probably better than a preferred on. ;)
by Chevelle
Thu Dec 02, 2021 2:15 pm
Forum: Hardware
Topic: Number of Servo PWM Pins on ESP32-C3
Replies: 2
Views: 7798

Number of Servo PWM Pins on ESP32-C3

The ESP32 devices support up to 16 servo-style PWM outputs. It was not clear to me in the documentation as to how many GPIO pins can be assigned a servo PWM pins on the ESP32-C3.

Thanks for any assistance.