Search found 160 matches
- Sun Dec 12, 2021 11:08 am
- Forum: ESP32 Arduino
- Topic: esp_eth_set_mac does nothing. Can't change ESP's MAC Address
- Replies: 3
- Views: 9730
Re: esp_eth_set_mac does nothing. Can't change ESP's MAC Address
I don't get it.
- Sun Dec 05, 2021 11:28 am
- Forum: ESP32 Arduino
- Topic: esp_eth_set_mac does nothing. Can't change ESP's MAC Address
- Replies: 3
- Views: 9730
Re: esp_eth_set_mac does nothing. Can't change ESP's MAC Address
Sooo ? Should it work or not ?
- Wed Nov 24, 2021 3:23 pm
- Forum: ESP32 Arduino
- Topic: esp_eth_set_mac does nothing. Can't change ESP's MAC Address
- Replies: 3
- Views: 9730
esp_eth_set_mac does nothing. Can't change ESP's MAC Address
Hello.
I'm trying to set the MAC of the ETH interface the same as the WiFi interface using the following code:
ETH.begin();
uint8_t mac[] = {};
esp_wifi_get_mac(WIFI_IF_STA, &mac[0]);
esp_eth_set_mac(&mac[0]);
Serial.print("ETH MAC: ");
Serial.println(ETH.macAddress());
This prints the ...
I'm trying to set the MAC of the ETH interface the same as the WiFi interface using the following code:
ETH.begin();
uint8_t mac[] = {};
esp_wifi_get_mac(WIFI_IF_STA, &mac[0]);
esp_eth_set_mac(&mac[0]);
Serial.print("ETH MAC: ");
Serial.println(ETH.macAddress());
This prints the ...
- Tue Sep 14, 2021 12:13 pm
- Forum: ESP32 Arduino
- Topic: Can't connect to ESP32 STA_MODE while in a local network.
- Replies: 0
- Views: 2309
Can't connect to ESP32 STA_MODE while in a local network.
I have an ESP32 and a laptop connected to a switch, making a local network with no internet access.
I have set the ESP in STA Mode, with an Ethernet connection:
ETH.config(local_IP_STA, gateway_STA, subnet_STA, primaryDNS);
The gateway is the same as the switch address.
The subnet is 255.255.255 ...
I have set the ESP in STA Mode, with an Ethernet connection:
ETH.config(local_IP_STA, gateway_STA, subnet_STA, primaryDNS);
The gateway is the same as the switch address.
The subnet is 255.255.255 ...
- Fri Aug 06, 2021 11:21 am
- Forum: Hardware
- Topic: Can I power an ESP32 using 5V except USB ?
- Replies: 3
- Views: 46142
Re: Can I power an ESP32 using 5V except USB ?
Hello @GeorgeFlorian1
have a look at the specs of your board:
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-devkitc.html#power-supply-options
BTW: I don't think there is a VIN pin.
Thanks
Felix
I've looked for that page for years and I couldn't ...
- Wed Aug 04, 2021 1:04 pm
- Forum: Hardware
- Topic: Can I power an ESP32 using 5V except USB ?
- Replies: 3
- Views: 46142
Can I power an ESP32 using 5V except USB ?
What are the 5V and VIN pins used for on a DevKitV4 with ESP32 Wrover-B ?
Can I power the ESP using one of those pins ?
If not, then I am supposed to get a 3V3 power supply and use the 3V3 pin ?
Can I power the ESP using one of those pins ?
If not, then I am supposed to get a 3V3 power supply and use the 3V3 pin ?
- Tue Jul 20, 2021 2:47 pm
- Forum: ESP32 Arduino
- Topic: Why are GPIOs 34 and 35 always LOW ?
- Replies: 8
- Views: 33725
Re: Why are GPIOs 34 and 35 always LOW ?
pinMode(GPIO, OUTPUT);
digitalWrite(GPIO, STATE);
---
pinMode(GPIO, INPUT); or INPUT_PULLUP INPUT_PULLDOWN
xxx=digitalRead(GPIO);
---
If the pin is configured as an INPUT, digitalWrite() will enable (HIGH) or disable (LOW) the internal pullup on the input pin. It is recommended to set the pinMode ...
- Tue Jul 20, 2021 11:30 am
- Forum: Hardware
- Topic: What ESP32 has the most amount of free GPIO ?
- Replies: 2
- Views: 4632
What ESP32 has the most amount of free GPIO ?
Hello.
I need an ESP32 variant being able to drive a LED display that uses the following pins:
#define R1_PIN GPIO_NUM_12
#define G1_PIN GPIO_NUM_14
#define B1_PIN GPIO_NUM_33
#define R2_PIN GPIO_NUM_25
#define G2_PIN GPIO_NUM_9
#define B2_PIN GPIO_NUM_18
#define A_PIN GPIO_NUM_19
#define ...
I need an ESP32 variant being able to drive a LED display that uses the following pins:
#define R1_PIN GPIO_NUM_12
#define G1_PIN GPIO_NUM_14
#define B1_PIN GPIO_NUM_33
#define R2_PIN GPIO_NUM_25
#define G2_PIN GPIO_NUM_9
#define B2_PIN GPIO_NUM_18
#define A_PIN GPIO_NUM_19
#define ...
- Tue Jul 20, 2021 11:14 am
- Forum: ESP32 Arduino
- Topic: Why are GPIOs 34 and 35 always LOW ?
- Replies: 8
- Views: 33725
Re: Why are GPIOs 34 and 35 always LOW ?
Input only pins
GPIOs 34 to 39 are GPIs – input only pins. These pins don’t have internal pull-ups or pull-down resistors. They can’t be used as outputs, so use these pins only as inputs:
GPIO 34
GPIO 35
GPIO 36
GPIO 39
https://randomnerdtutorials.com/esp32-pinout-reference-gpios/
use external ...
- Mon Jul 19, 2021 1:56 pm
- Forum: General Discussion
- Topic: Should it be possible to shutdown a PC using an ESP32 ?
- Replies: 1
- Views: 3123
Should it be possible to shutdown a PC using an ESP32 ?
Hello.
I am trying to shutdown a PC that runs Linux using an ESP32. The ESP32 should be in softAP() mode and the PC should be connected to it.
I've thought of using https://github.com/ewpa/LibSSH-ESP32 to establish a SSH Connection and send a command, but I am unable to figure out how to use that ...
I am trying to shutdown a PC that runs Linux using an ESP32. The ESP32 should be in softAP() mode and the PC should be connected to it.
I've thought of using https://github.com/ewpa/LibSSH-ESP32 to establish a SSH Connection and send a command, but I am unable to figure out how to use that ...