create a file on student.py
========================
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
def anil_test(i):
print("this is working"+i)
create another file test.py
======================
#from student import anil_test,Person
from student import *
anil_test("anil")
p1 = Person("John", 36)
print(p1.name)
print(p1.age)
Django models test...
======================
.in models.py file
class student(models.Model):
student_sno = models.IntegerField();
student_name = models.CharField(max_length=256);
student_father_name= models.CharField(max_length=256);
class student_class(models.Model):
student = models.ForeignKey(student,on_delete=models.CASCADE)
python manage.py makemigrations your_app
python manage.py sqlmigrate your_app 0001
python manage.py migrate
python .\manage.py shell
in db shell
=====================
from chess2.models import student, student_class
Django html tags display:
========================
By writing html tags you can achieve the output
go into views.py file
def menu(request):
return HttpResponse("<h1>This is working menu</h1>");
django installation process:
=============================
pip install virtualenvwrapper-win
mkvirtualenv test
pip install django
django-admin --version
mkdir yourfolder
cd yourfolder
django-admin startproject yourprojectname
python manage.py runserver
to create virtual environment in vscode:
=======================================
workon "base"
python manage.py startapp yourapp
creating your app:
=======================
create urls.py in your app
urlpatterns=[
path('',views.home,name='home')
]
go into views.py
add :from django.http import HttpResponse
create a function home
def home(request):
return HttpResponse("we are into our own page");
go into urls project:
add below line
path('',include('yourapp.urls'))
AT commands
testing on ESP32-WROOM-32
ESP32-WROOM-32 PINOUT DIAGRAM
ESP32-WROOM-32 -
ESP32-WROOM-32 module soldered to the development board. Optionally
ESP32-WROOM-32D, ESP32-WROOM-32U or ESP32-SOLO-1 module may be soldered instead
of the ESP32-WROOM-32.
USB-UART
Bridge - A single chip USB-UART bridge provides up to
3 Mbps transfers rates.
BOOT button
- Download button: holding down the Boot button and pressing the EN button
initiates the firmware download mode. Then user can download firmware through
the serial port.
EN button
- Reset button: pressing this button resets the system.
Micro
USB Port - USB interface. It functions as the power
supply for the board and the communication interface between PC and the ESP
module.
TX0,
TX2 - transmit pin. GPIO pin
RX0,
RX2 - receive pin. GPIO pin
3V3
(or 3V or 3.3V) - power supply pin (3-3.6V).
GND -
ground pin.
EN -
Chip enable. Keep it on high (3.3V) for normal operation.
Vin -
External power supply 5VDC.
1. Uploading AT firmware/Firmware upgrade
CONNECTIONS :
·
Attach USB cable one side to ESP32-WROOM-32
·
Connect the another end PC/LAPTOP
Shown below
2. Using USB
to TTL converter for AT communication
ESP32-WROOM-32 firmware versions
ESP32-WROOM-32
AT Bin V1.1.1 2018.07.11
ESP32-WROOM-32
AT Bin V1.1 2018.06.13
ESP32-WROOM-32
AT Bin V1.0 2017.11.17
ESP32-WROOM-32
AT Bin V0.10 2017.06.14
1. Do wiring for uploading
AT firmware/firmware update.
2. Download Flash
Download Tools (ESP8266 & ESP32) from espressif.com.
The
ESP32 Flash Download Tool, just like the ESP8266 download tool, is the official
Espressif Download tool that runs on Windows platform. The tool can be used to
modify and generate init BINs, generate consolidated BIN files or program
multiple chips for production runs.
The
tool uses COM port to send BIN files from PC to the ESP32, which then flashes
the data to the primary flash chip.
The
ESP32 Flash Download Tool, just like the ESP8266 download tool, is the official
Espressif Download tool that runs on Windows platform. The tool can be used to
modify and generate init BINs, generate consolidated BIN files or program
multiple chips for production runs.
The tool uses COM port to send BIN files from PC to the ESP32, which then
flashes the data to the primary flash chip.
3. Download and unzip the
latest AT firmware for your module (Check which module you have, for example we
have ESP32-WROOM-32). We used this firmware here: ESP32-WROOM-32 AT Bin V1.1.1 2018.07.11
4. Go to the
folder ESP32-WROOM-32_AT_V1.1.1 and find file named download.config.
AT commands firmware
for memory locations
1. bootloader.bin:0x1000
2. at_customize.bin:0x20000
3. server_cert.bin:0x24000
4. server_key.bin:0x26000
5. server_ca.bin:0x28000
6. client_cert.bin:0x2a000
7. client_key.bin:0x2c000
8. client_ca.bin:0x2e000
9. phy_init_data.bin:0xf000
10. esp-at.bin:0x100000
11. partitions_at.bin:0x8000
Download tool
After flashing the
firmware
To communicate (use AT commands) with ESP32
development board you need USB to TTL converter.
For using this USB to UART Converter you need
a software tool. You can use different software tools: Terminal, USR-TCP232-Test V1.4, AiThinker_Serial_Tool_V1.2.3, coolterm, sscom3.2 , KiTTY, putty,tera term, Access port and so
on. We recommend you to use AiThinker_Serial_Tool_V1.2.3 or sscom3.2,
as you can save your AT commands and it's very easy to use.
Results
Using simple serial/UART communication using we can connect with MM32 mcu with EC20 gsm modules.
please find the code below
