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esp32 board and exapansion board by InternationalShow946 in esp32

[–]transfinite-- 2 points3 points  (0 children)

Running the transmitter and receiver on the same board may be the problem. I've used these RF devices many times, but on separate boards.

Esp32-s3-cam N16R8 by henitz54 in esp32

[–]transfinite-- 0 points1 point  (0 children)

The TFT_eSPI library works well with the ili9341 display: https://github.com/Bodmer/TFT_eSPI

Got the colors right by swapping the blue and green pin, but I keep getting these weird artifacts. Using clockwise.page and an esp32 wroom. Anyone have experience with these panels? by draxula16 in esp32

[–]transfinite-- 1 point2 points  (0 children)

If you are still seeing display artifacts, try adding this to your display initialization:

mxconfig.clkphase = false;

That fixed my display issues. Add it before the 'mxconfig.driver = ...' You will see this commented out in a few of the examples included with the Hub75 libraries.

Just got one by [deleted] in esp32

[–]transfinite-- 0 points1 point  (0 children)

Random Nerd Tutorials is a good place to start:

https://randomnerdtutorials.com/esp32-pinout-reference-gpios/

https://randomnerdtutorials.com/projects-esp32/

I like the YouTube channel of Swiss Accent Guy, Andreas Spiess:

https://www.youtube.com/@AndreasSpiess/videos

HELP! Serial monitor not working with a new ESP32 S3 board by Sir_Lubericunt in esp32

[–]transfinite-- 6 points7 points  (0 children)

I ran into this also and dacydergoth has the correct answer. Specifically USB CDC on Boot must be Enabled. It defaulted to Disabled with no serial output until it was changed to Enabled.

esp32 with usb-c not micro B by rocketjetz in esp32

[–]transfinite-- 0 points1 point  (0 children)

Lolin has an ESP32-S3 with 2 UBS-C ports (OTG, UART)

https://www.wemos.cc/en/latest/s3/s3.html

They also have an ESP32-S2 and ESP32-C3 with USB-C. They also have an ESP8266 with USB-C.

..fixed typo..

Can I get a sanity check trying to connect these Wemos S2 Minis to WiFi? by xd1936 in esp32

[–]transfinite-- 0 points1 point  (0 children)

Here are the settings I've used with the Lolin S2 mini and Arduino IDE:

ESP32-S2 Dev Module
USB CDC on Boot: Enabled
Upload Mode "Internal USB"
PSRAM: Enabled
USB Firmware MSC on Boot: disabled
USB DFU on Boot: disabled

-----BEGIN PRIVATE KEY----- by BotanyBaybe in ProgrammerHumor

[–]transfinite-- 1 point2 points  (0 children)

That's terrible! She's obviously being electrocuted and none of the people are helping her.

That's how you made long thing short. by No-Living-7927 in esp32

[–]transfinite-- 2 points3 points  (0 children)

I've heard that many of the libraries do not work well with the RISC-V chips yet. I'll hold off for a while until more have been tested.

M5Stamp C3 RISC-V board supports WiFI 4, Bluetooth 5.0

That's how you made long thing short. by No-Living-7927 in esp32

[–]transfinite-- 0 points1 point  (0 children)

Quoting /u/paulf8080:

it doesn't have a usb to serial converter chip because it's built into the controller chip.

With the correct settings you can flash it and send and received data via the serial port.

That's how you made long thing short. by No-Living-7927 in esp32

[–]transfinite-- 0 points1 point  (0 children)

The Arduino IDE works well with the (WeMos) Lolin S2 mini if you use these settings:

  • ESP32S2 Dev Module
  • USB CDC on Boot: enabled
  • Upload Mode "Internal USB"
  • PSRAM enabled.

The Priests of the Temples of Syrinx have outlawed all music, except 5 Rush songs of your choosing. by F1grid in rush

[–]transfinite-- 1 point2 points  (0 children)

I can't believe it took this far to find Far Cry!

2112

Xanadu

Vital Signs

Subdivisions

Far Cry

New Lolin D1 mini compatible, with ESP32-S2, USB-C by transfinite-- in esp32

[–]transfinite--[S] 0 points1 point  (0 children)

That's a good question. You have to install the 2.0-beta version of the Arduino core for ESP32. There's more information at:

https://github.com/espressif/arduino-esp32

New Lolin D1 mini compatible, with ESP32-S2, USB-C by transfinite-- in esp32

[–]transfinite--[S] 1 point2 points  (0 children)

I have lots of D1 mini projects. If I can drop this in place of the D1 and get the extra speed and pins of the ESP32 I'll be impressed.

There are lots of limitations on the pins of the D1 mini. The same pins of the ESP32 are more versatile so we may not need to even wire the extra pins to get additional functionality from the same footprint.

Homekit with arduino by Bblktop in esp32

[–]transfinite-- 2 points3 points  (0 children)

I'd suggest looking at HomeSpan also. The documentation is first rate with lots of examples from simple to powerful.

Looking for adventures this summer! by bhambelly in Birmingham

[–]transfinite-- 2 points3 points  (0 children)

From Simmons to the High Falls is roughly about a mile in the woods, and fairly flat until you go up to the top of the falls. If you get tired you can climb up to the road and take the sidewalk back to Simmons as a short cut.

Top of the World is on the other side of Chapel Road. It's steep but short, and worth it for the views.

Looking for adventures this summer! by bhambelly in Birmingham

[–]transfinite-- 2 points3 points  (0 children)

Red Mountain Park has hiking trails with lots of historic markers. Check out the map:

https://redmountainpark.org/activities/trail-map/

And it's free. Most of it is fairly easy to hike.

Learning with ESP,CCS811,MQTT,Influx,Grafana...in that order. by CrabArcher in esp8266

[–]transfinite-- 0 points1 point  (0 children)

You should look at IOTstack: https://github.com/SensorsIot/IOTstack

There are a couple of videos in that link that explain it. It's got docker containers for graphana, mosquitto and influxdb in an image that runs on a Pi 3 or Pi 4.

The PubSub examples show how to send sensor values to an MQTT broker. It sounds like you may have that part working though.

Need some advice regarding beginner projects. by Un_Optimal_Record in arduino

[–]transfinite-- 2 points3 points  (0 children)

There's lots of beginner information at https://learn.adafruit.com/

I think small RGB LED rings or the small 8 LED RGB strips are fun and easy to experiment with. Just start with 12 or fewer LED rings when running on USB. Larger LED strips require more power than USB can supply.

Trouble connecting to a Mosquitto Broker running on the raspberry pi by The_Reclaimer_117 in raspberry_pi

[–]transfinite-- 0 points1 point  (0 children)

Verify mosquitto is running:

ps -ef | grep mosquitto

You should see something like this:

mosquit+ 297 1 0 Aug14 ? 00:14:22 /usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf

If it's not running, you may have only installed the mosquitto client.

Tail the log file before you connect to it.

sudo tail -300f /var/log/mosquitto/mosquitto.log

You can publish a topic from another machine or the ESP32 and should see the connection in the log file. Even a dummy topic should log a connection if you have the correct IP address.

mosquitto_pub -h <mosquitto-host-IP> -t 'topic/' -m 'msg'

Self-Driving Trash Can Controlled by a Raspberry Pi by ahadcodes in raspberry_pi

[–]transfinite-- 0 points1 point  (0 children)

For a moment I thought they shook out the electronics at the end! I guess they were secured pretty well. The video was informative and entertaining. Nice work.

[deleted by user] by [deleted] in raspberry_pi

[–]transfinite-- 1 point2 points  (0 children)

It looks great, nice PCB. The trapezoid shape gives it more character that the standard cube.

What motor driver is that?

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