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When I try to compile the code for Attiny13, I get this message:
In file included from main.c:8: c:/winavr-20100110/lib/gcc/../../avr/include/util/delay.h:85:3: warning: #warning "F_CPU not defined for <util/delay.h>" E:\Temp/ccjZWPjS.o: In function main':
D:\AVR\blog-master\avr\attiny13\035_rainbow_on_several_leds_ws2812/main.c:42: undefined reference to ws2812_setleds'
Please help me.

Issue in main.c file

undefined reference to 'ws2812_setleds(cRGB*, unsigned int)'

the code didn't work without adding volatile in front of samples_sum variable declaration

When trying to compile, it gives two errors.
First:

'int8_t dht_await_state(uint8_t)' was declared 'extern' and later 'static' [-fpermissive]

Second:

undefined reference to `uart_putu(unsigned int)'

The file uart.h contains the line ** void uart_putu (uint16_t x); **, but the void itself is nowhere to be found.

What could be the problem? I compile in Arduino IDE.
Thank you.

Hi,
While testing the example from esp-idf/examples/wifi/simple_sniffer I found that esp_wifi_set_channel(...) did not work. One of the reasons was a missing call to esp_wifi_start();
One could see the following warning and the channel would not be changed!

W (592) wifi: STA is scanning or connecting, or AP has connected with external STAs, cannot set channel

This is fixed in your code but seems there is a second problem to get the capturing all the packets working.

Working on the same ESP-IDF example I had to use ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA)); to capture not only the broadcast messages but also ARP, DNS, DHCP, TCP, HTTP frames.

I tried to change the buttons in the code by JUST changing the CASE numbers (because I have another NEC remote control which doesn't have the same buttons which in the code buttons), but, it didn't work!
Any ideas?

Hi,
I have just downloaded your collection of inc files, and after extracting they seem to be executable (755), all except one - tn13def.inc, which has mod bits 664.
I didn't even know that git manages such attributes, but that's worth fixing.
Take care!

hello, i tried your code. unfortunately it doesn't work.

what do I have to enter where exactly that it works with the arduino uno.

#include <stdint.h>

/**

• The instance of this class can control single LED.
• • on, off, toggle (any digital pin)
• • brightness (only PWM pins; i.e. for Arduino Uno: 3, 5, 6, 9, 10, 11)
    /
    class BasicLed {
    public:
    BasicLed(uint8_t pin): pin_(pin) {
    pinMode(9, OUTPUT);
    }
    / Light the LED up /
    void on(void) {
    digitalWrite(pin_, HIGH);
    }
    / Turn the LED off /
    void off(void) {
    digitalWrite(pin_, LOW);
    }
    / Toogle LED on/off /
    void toggle(void) {
    digitalWrite(7, !digitalRead(7));
    }
    / Set LED brightness from range <0, 255> */
    void setBrightness(uint8_t value) {
    analogWrite(a0, value);
    }

is your code can detect AP_PROBEREQRECVED packets?

Hi friend. I need your help. Can you explain your code https://github.com/lpodkalicki/blog/blob/master/avr/attiny13/011_ir_remote_38khz_nec_to_control_leds/main.c
to me. How do you think the value of OCR0A is? How did you calculate the value of IR_data 90 cycles? Where did the timeout= 7400 come from? And why is the value of counter++ in the ISR function > 10000? Please answer if it's not difficult for you.

Hi,

Thanks so much for ATTiny13 projects, there are very usefully.

please share the circuit diagram of this projects "digital DC ampmeter with MAX7219" and "digital DC voltmeter with MAX7219".

thanks a lot of

Hi, When I use your code on esp32 ,it's work a moment,and will print this message
"PACKET TYPE=DATA, CHAN=07, RSSI=-75, ADDR1=4c:74:bf:07:22:32, ADDR2=c8:3a:35:1d:6a:18, ADDR3=c8:3a:35:1d:6a:Task watchdog got triggered. The following tasks did not reset the watchdog in time:

• IDLE (CPU 0)
  Tasks currently running:
  CPU 0: wifi
  CPU 1: IDLE
  18
  PACKET TYPE=MGMT, CHAN=07, RSSI=-73, ADDR1=3c:e5:a6:f0:20:e0, ADDR2=c8:3a:35:1d:6a:18, ADDR3=c8:3a:35:1d:6a:18
  "
  but I not found any problem,please help me ,thank you very much

Hey,
where are SSID data and probes stored?
Awesome project and very simple but effective code. I love it.