Search found 194 matches

by username
Sat Sep 05, 2020 10:59 pm
Forum: General Discussion
Topic: Unpredictable PWM behaviour when powered via 5v pin
Replies: 20
Views: 980

Re: Unpredictable PWM behaviour when powered via 5v pin

Does your LM7805 regulator have 0.1uf bypass caps on both the input and output ?
by username
Sun Aug 30, 2020 10:57 pm
Forum: General Discussion
Topic: ESP32 on development board would not accept Flashing when sent on TX Rx pins in spite of Grounding IO0
Replies: 4
Views: 315

Re: ESP32 on development board would not accept Flashing when sent on TX Rx pins in spite of Grounding IO0

I think that it's more likely that the issue is that your devboard already has an USB-to-serial-converter connected to the Tx and Rx pins, and that connection is interfering. Suggest you use the onboard USB port to program the board instead.
Dam, something so obvious... Good call ESP_Sprite!
by username
Sun Aug 30, 2020 12:54 pm
Forum: General Discussion
Topic: ESP32 on development board would not accept Flashing when sent on TX Rx pins in spite of Grounding IO0
Replies: 4
Views: 315

Re: ESP32 on development board would not accept Flashing when sent on TX Rx pins in spite of Grounding IO0

If you want to automatically flash you will need 2 more connections. EN & GPIO0. Your USB to serial board does not support it. There is a sequence with these 2 pins to put it into flashing mode. You can manually put it into flashing mode, but you will have to press and hold down the boot button, the...
by username
Wed Jun 03, 2020 1:45 am
Forum: Hardware
Topic: ESP32 wrover dev board with 16MB flash/8MB PSRAM?
Replies: 3
Views: 732

Re: ESP32 wrover dev board with 16MB flash/8MB PSRAM?

This place has the 16MB, but not with 8MBram, just 4MB.
https://www.electrodragon.com/product/e ... sed-esp32/
by username
Tue Jun 02, 2020 4:31 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 382
Views: 172126

Re: What would you like to see in The Next Chip?

A ESP32 module with onboard Ethernet PHY chip. Without the 9 RMII lines internally connected there will be 10+ lines left only to be routed outside to make the end-users' RJ45 application much easier! Na, that will increase the cost for all who dont even use Ethernet. Adding a PHY chip is ultra sim...
by username
Fri May 22, 2020 5:04 am
Forum: Hardware
Topic: ESP32-S2 With LCD interface, Confused
Replies: 0
Views: 508

ESP32-S2 With LCD interface, Confused

I was looking into the new ESP32-S2, primary because it says this: With LCD interface and 14 configurable capacitive touch GPIOs, ESP32-S2 provides the optimal HMI solution for touchscreen and touchpad-based devices. From this Link: https://www.espressif.com/en/products/socs/esp32-s2 I was looking a...
by username
Tue May 19, 2020 2:38 pm
Forum: General Discussion
Topic: ESP32: Use Arduino or ESP-IDF?
Replies: 16
Views: 21245

Re: ESP32: Use Arduino or ESP-IDF?

In short, I can't express how frustrated I am with Arduino, and how great ESP-IDF has been. Simular issues here. I started out with Arduino only because I was new to espressif. As time moved on and I started moving on from simple hello world, toggling GPIO and so on to adding peripherals and making...
by username
Fri May 15, 2020 2:32 am
Forum: General Discussion
Topic: ESP32 DEVKIT and 12V NPN Sensor
Replies: 12
Views: 1562

Re: ESP32 DEVKIT and 12V NPN Sensor

Try sticking a delay(10); or delay(100); in your loop().
by username
Thu May 14, 2020 3:37 pm
Forum: General Discussion
Topic: ESP32 DEVKIT and 12V NPN Sensor
Replies: 12
Views: 1562

Re: ESP32 DEVKIT and 12V NPN Sensor

What voltage is sensors output ?
If it's 5v you have a problem. You need to get it to 3.3v.
by username
Wed May 13, 2020 12:24 pm
Forum: Hardware
Topic: Is my Schematic Ok?
Replies: 11
Views: 1474

Re: Is my Schematic Ok?

This is the one we use in all of our products.
Not sure what you Vin requirements are, so there are 2 of them.

https://www.digikey.com/products/en?key ... 37104-1-ND

https://www.digikey.com/products/en?key ... 47090-1-ND

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