WiFi Kit8 TX and RX Baud Rate

Xtech · January 6, 2021, 12:02pm

Good Day!
Is there a way to identify the baud rate TX and RX are running from Factory?
Also how can it be changed to most serial sensor requires?

jasonXu · January 7, 2021, 7:21am

hi,

here is the factory test code(The factory program of all WiFi kit 8 is this):

github.com

HelTecAutomation/Heltec_ESP8266/blob/master/examples/Factory_Test/WiFi_Kit_8_FactoryTest/WiFi_Kit_8_FactoryTest.ino

/*
 * HelTec Automation(TM) wifi kit 8 factory test code, witch include
 * follow functions:
 *
 * - Basic OLED function test;
 *
 * - Basic serial port test(in baud rate 115200);
 *
 * - LED blink test;
 *
 * - WIFI join and scan test;
 *
 * - Timer test and some other Arduino basic functions.
 *
 * by Aaron.Lee from HelTec AutoMation, ChengDu, China
 * 成都惠利特自动化科技有限公司
 * www.heltec.cn
 *
 * this project also realess in GitHub:
 * https://github.com/HelTecAutomation/Heltec_ESP8266

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jasonXu · January 7, 2021, 7:20am

The key to the problem is that the baud rate set by the bootloader of esp8266 is 76800. But the bootloader seems to be difficult to modify.

Xtech · January 11, 2021, 5:42pm

Humm.
So how would we set the baud rate to what our sensors require?

Also how many bytes the serial buffers hold?

Xtech · January 11, 2021, 5:47pm

There is no serial communication sample here.

Do anyone have accomplished serial communication with any sensor using the WiFi kit8?

If so, Can anyone guide the rest of us to a sample, so maybe the person in charge can spend a bit more time updating the documentations and provide real scenario samples?

jasonXu · January 12, 2021, 8:14am

hi,

could you tell us your sensor name?

we will buy a sample and do some test.