megaTinyCore + wifi101: ATtiny3216SN

Official Hardware Retired WiFi Shield 101
1

I have DUE R3 and module ATWINC1500 FW 19.4 Connect them together, load with example code, I can log data to xampp server and work as SimpleWebServerWiFi(control via webpage).
I follow the link below to Log data and it work OK. Link:

Then I use MCU ATtiny3216SN 20 pin and connect ATtiny3216 with second module ATWINC1500 FW 19.4.
I install megaTinyCore for ArduinoIDE, setting board megaTinyCore use for ATtiny3226/3216/1626/1616/1606/826/816/806/426/416/406, choose chip is ATtiny3216, clock is 20MHz then I choose programmer is ATMELICE

with the code work with DUE, I change a little at pin for WiFi.setPins(0,1,2);
Then I "upload using programmer" to ATtiny3216SN by ATMELICE.
output command show warning:


/home/scxxxxxa/Arduino/libraries/WiFi101/src/common/include/nm_debug.h:73:6: warning: "CONF_WINC_DEBUG" is not defined, evaluates to 0 [-Wundef]
 #if (CONF_WINC_DEBUG == 1)

Sketch uses 30386 bytes (92%) of program storage space. Maximum is 32768 bytes.
Global variables use 1127 bytes (55%) of dynamic memory, leaving 921 bytes for local variables. Maximum is 2048 bytes.

Writing | ################################################## | 100% 3.00s

avrdude: 31462 bytes of flash written

ATtiny3216 with ATWINC1500 can log data to server OK. But for SimpleWebServerWiFi, value always is 0 at this line
char c = bclient.read(); // read a byte, then

I surf in forum and found a link with similar problem at link below:

But it not help for my case because wifi101 only have two void for read below:


int WiFiClient::read()
{
	uint8_t b;

	if (read(&b, sizeof(b)) != 1) {
		return -1;
	}

	return b;
}

int WiFiClient::read(uint8_t* buf, size_t size)
{
	// sizeof(size_t) is architecture dependent
	// but we need a 16 bit data type here
	uint16_t size_tmp = available();
	
	if (size_tmp == 0) {
		return -1;
	}
	
	if (size < size_tmp) {
		size_tmp = size;
	}

	int result = WiFiSocket.read(_socket, buf, size);

	return result;
}

So, if anyone else can work with client.read(); for megaTinyCore, please add your comment and I very highly appreciate for your kind.
Or, if you have a driver library of ATWINC1500 with work for ATtiny3216 on microchipstudio7, please give me, I will try with it. I surf but I only found link for ATmega4808 and SAMD21, but I only need to on and off 3 output and log 5 value to server only, so, ATtiny3216 is best

2

so it can be tested with the WiFiWebServer example?

3

With WiFiWebServer example, the value of char c = bclient.read(); always is 0 ('\Z')
So, It only show the webpage and can not control the MCU via webpage due to value of client.read alway is 0.

it can log data via XAMPP OK, no problem.

4

To show the content of webpage of WiFiWebServer, I remove the if condition" if (c == '\n' && currentLineIsBlank)" and print c value on webpage with client.print(c);
the value of c is Z only

5

I use DUE to print value of c in command char c = bclient.read();
I use command Serial.write(c); on ATtiny3216 to send value to DUE
Every I start to connect IP address via firefox, serial1 port 1 on Due received value of c from ATtiny3216 . I copy and paste value below:
(I remove some 0 value for easier to read)

90
80
243
0
36
32
55
0
1
1
15
0
0
32
0
0
156
63
130
0
0
0
0
16
0
0
0
0
0
0
0
0
0
0
0
0
0
150
6
0
0
8
0
0
0
23
0
0
0
61
16
0
0
0
33
0
0
0
255
0
0
0
0
0

Why no value 10 is '\n' is received? and I can not connect it if I use '\n' value, I only connect to it if I set c = 0x0, that only show value and cannot control from webpage via command

6

SpenceKonde say to me that megatinycore library still not full support for WiFi. Currently, with my testing, I can log data to Xampp server, but can not read command from client.
megatinycore will be updated, later.