ESP32 connect OLED display ( SSD1306 )

ESP32 connect OLED Display

We have ESP32 WiFi Module and We'd like to connect to some small display.Easy way to interface with small display is OLED on I2C Bus. because of use 4 wire to connect.

We choose to OLED is 0.96 inch 128x 64 OLED and SSD1306 Library from Adafruit.
and we test on Nano32 development board from Gravitech and Maker Asia.

Wiring Diagram

OLED SSD1306 Pin SCL to ESP32 GPIO 22
OLED SSD1306 Pin SDA to ESP32 GPIO 21

IDE and Library

We use Arduino IDE to develop code in C/C++.
If you are new for this see How to develop ESP32 on Arduino IDE first.
We use Arduino IDE 1.8.5

Add SSD1306 Library
Goto Menu Sketch => Include Library => Manage Libraries

Then search "ssd1306" and Install Adafriut SSD1306 by Adafriut Version 1.x.x

Edit Some Library code for OLED 128x64 only.
When install library done.
In folder Documents / Arduino / libraries /
We will found Adafriut_SSD1308.ccp and Adafriut_SSD1306.h

Edit Adafruit_SSD1306.ccp line 206
Wire.begin(); to Wire.begin( 21, 22 );

Edit Adafruit_SSD1306.h line 55
0x3D to 0x3C

and line 73
uncomment this line for use #define SSD1306_128_64

Example Code

Goto Menu File => Examples => Adafruit SSD1306 => ssd1306_128x64_i2c
and edit code line 61 in Setup Function.
change address i2c from 0x3D to 0x3C.

Then upload code to your ESP32 development board.

Test with ESP32 Thing form Sparkfun

Reference

http://esp32.net/

https://github.com/imxieyi/esp32-i2c-ssd1306-oled

http://www.instructables.com/id/ESP32-and-OLED-Display-Internet-Clock-DHT22/

https://github.com/Mjrovai/ESP32/tree/master/Playing%20with%20ESP32%20and%20Arduino%20IDE/ESP32%20-%20SSD1306/ESP32_Time_Stamp_DHT22_SSD1306

My Website

http://softpowergroup.net/

email : info@softpowergroup.net ,amphancm@gmail.com Tel .+6681-6452400

Google+ https://plus.google.com/+SoftpowergroupNetThailand/

Android and Arduino IoT

Android Arduino Control Hardware

LINE : adunfong
FaceBook : https://www.facebook.com/adun.nantakaew
email: amphancm@gmail.com

ESP8266 Weather Station with Color TFTLCD

ESP8266 Weather Station with TFTLCD

In this project, we'll learn how to make a weather station using an ESP8266 WiFi Module and a 2.2" TFT LCD display. ( 240 x 320 65K)
This project pulls weather data using the Wunderground API. It displays the date, time, current weather conditionals, 4-day forecast and even moon phases.

Hardware

ESP8266 WiFi Module ( ESP8266 DevKit or NodeMCU )
TFT LCD 2.2 Inch : TFT01-2.2SP from Electrofreak (SPI Bus )

Wiring Diagram

TFT LCD Pin VCC
TFT LCD Pin GND
TFT LCD Pin CS to GPIO_5
TFT LCD Pin RST to RST
TFT LCD Pin DC to GPIO_2
TFT LCD Pin MOSI to GPIO_13
TFT LCD Pin CLK to GPIO_14
TFT LCD Pin LED to +3.3 V.
TFT LCD Pin MISO ( not use )

You can test TFTLCD first.see detail.
http://microcontrollerkits.blogspot.com/2015/11/esp8266-wifi-tftlcd.html

Source code

Original Code form squix78
https://github.com/squix78/esp8266-weather-station

Arduino Library
Weather Station Library
Adafruit ILI9341 Library
Adafruit GFX Library
WifiManager Library

Reference
https://learn.adafruit.com/wifi-weather-station-with-tft-display/overview
https://www.wunderground.com/weather/api

My Blog

Android Arduino Control Hardware

My Website

http://softpowergroup.net/

email : info@softpowergroup.net amphancm@gmail.com Tel . +6681-6452400

Facebook https://www.facebook.com/softpowergroup/

Google+ https://plus.google.com/+SoftpowergroupNetThailand/

ESP8266 Sent Sensor Data to Firebase Realtime Database

ESP8266 Sent Sensor Data to Firebase Realtime Database

What is Firebase ?
Firebase is a platform that helps you quickly develop high-quality apps ( Mobile and Web Apps),
grow your user base, and earn more money.

Firebase is made up of complementary features that you can mix-and-match to fit your needs.
Show in May 2016, at the Google I/O conference

System Diagram

Hardware
1.ESP8266 WiFi Module or NodeMCU ( We use ESP8266 12E )
2.Temperature and Humidity Sensor DHTxx ( we use DHT22 or AM2302 )
3.OLED Display for Option

Wiring Diagram

My ESP8266 WiFi Model Development Board

Software

ESP8266 Source code on Github ( Arduino IDE )
https://github.com/amphancm/ESP8266-Firebase

Arduino Library
Firebase Arduino Library
WiFi Connector
DHT Sensor
Adafriut GFX ( OLED Display )

Reference
• Firebase Arduino [GitHub]
• Firebase Arduino - Documentation
In Thai
มาลองใช้งาน Firebase Realtime Database กับ ESP8266 ด้วย Arduino กันเถอะ
http://www.akexorcist.com/2016/11/firebase-and-esp8266-with-arduino.html

ESP8266 ESP8285 กับการใช้งาน Firebase ระบบฐานข้อมูลเรียลไทม์จาก Google

Demo with Android App

My Website

http://softpowergroup.net/

email : info@softpowergroup.net Tel .081-6452400

Google+ https://plus.google.com/+SoftpowergroupNetThailand/

ESP32 develop with Arduino IDE

ESP32 Develop with Arduino IDE
I've just ESP32 Development Board call Nano32 from Gravitech / MakerAsia.
The new ESP32 WiFi chip from ESPressis System improve over ESP8266 WiFi Module.
see the spec.
http://microcontrollerkits.blogspot.com/2016/10/esp32-development-board-form-gavitech.html

Now ( Oct10 ,2016 ) announced Arduino Core for ESP32 WiFi Chip

arduino-esp32

The following was the setup environment for ESP32 with Arduino IDE

Windows 10
Arduino IDE 1.6.12
Arduino core for esp32 https://github.com/espressif/arduino-esp32
Python 2.7 https://www.python.org/downloads/

STEP 1
Download Arduino core for ESP32.

Then Unzip and we will copy all this file to Arduino IDE directory or path later.

STEP 2

If Install Arduino IDE already. Find the path of Arduino IDE Installation directory.

Example

My Computer in C:/Program Files (x86)/Arduino

Make New folder name espressif in the hardware directory

and make subfolder in espressif folder name esp32

Then copy all files from download into this directory. ( esp32 )

or Use Command Line

cd hardware
mkdir espressif
cd espressif
git clone https://github.com/espressif/arduino-esp32.git esp32

STEP 3
Use Python 2.7 Command
if you don't have it. download Python 2.7 https://www.python.org/downloads/

Then Use Command Line

cd esp32/tools
python get.py

My Example

STEP 4 Open Arduino IDE

Now, You will have Board ESP32 Dev Module and Select port

STEP 5 Test Compile and Upload Example Code

Test Blink in Example Code

Done Uploading.
Upload code faster than ESP8266 very much.

Reference ( Fixed some bugs ) Thank you for that.
http://www.ayarafun.com/2016/10/arduino-esp32-first-touch/

Nano32 Board
https://www.gravitechthai.com/product_detail.php?d=1470

My Website

http://softpowergroup.net/

email : info@softpowergroup.net Tel .081-6452400 ( Thailand )

Google+ https://plus.google.com/+SoftpowergroupNetThailand/

ESP32 Development Board form Gravitech and MakerAsia

ESP32 Development Board ( Nano32 )

Nano32 is new ESP32 development board. It’s made by South East Asia based Gravitech, and combines ESP32 with an FTDI chip for USB to serial programming through the micro USB port. It also includes two buttons, and breadboard-friendly headers.

NANO32 Features

40MHz Crystal for CPU, 32.768KHz Crystal for RTC and low power operation
4MB Flash (32Mbit)
FTDI231 for USB to Serial
Auto-Reset for automatic flash
3.3V 0.5A Regulator (tested for working up to 1A)
2.5dBi Peak Gain, 0.5dBi Average Gain Chip Antenna
High quality PCB: design and manufacture in Thailand

Key Features

Xtensa® Dual-Core 32-bit LX6 microprocessors, up to 600 DMIPS
Integrated 520 KB SRAM
Integrated 802.11BGN HT40 Wi-Fi transceiver, baseband, stack and LWIP
Integrated dual mode Bluetooth (classic and BLE)
4 MByte flash (32Mbit)
2.2V to 3.6V operating voltage
-40°C to +125°C operating temperature

Wi-Fi

802.11 b/g/n/e/i
802.11 n (2.4 GHz), up to 150 Mbps
802.11 e: QoS for wireless multimedia technology
WMM-PS, UAPSD
A-MPDU and A-MSDU aggregation
Block ACK
Fragmentation and defragmentation
Automatic Beacon monitoring/scanning
802.11 i security features: pre-authentication and TSN
Wi-Fi Protected Access (WPA)/WPA2/WPA2-Enterprise/Wi-Fi Protected Setup (WPS)
Infrastructure BSS Station mode/SoftAP mode
Wi-Fi Direct (P2P), P2P Discovery, P2P Group Owner mode and P2P
Power Management
UMA compliant and certified
Antenna diversity and selection

Bluetooth

Compliant with Bluetooth v4.2 BR/EDR and BLE specification
Class-1, class-2 and class-3 transmitter without external power amplifier
Enhanced power control
+10 dBm transmitting power
NZIF receiver with -98 dBm sensitivity
Adaptive Frequency Hopping (AFH)
Standard HCI based on SDIO/SPI/UART
High speed UART HCI, up to 4 Mbps
BT 4.2 controller and host stack
Service Discover Protocol (SDP)
General Access Profile (GAP)
Security Manage Protocol (SMP)
Bluetooth Low Energy (BLE)
ATT/GATT
HID
All GATT-based profile supported
SPP-Like GATT-based profile
BLE Beacon
A2DP/AVRCP/SPP, HSP/HFP, RFCOMM
CVSD and SBC for audio codec
Bluetooth Piconet and Scatter-net

Sensors

Ultra low noise analog amplifier
Hall sensor
10x capacitive touch interface
32 kHz crystal oscillator

32x GPIO

3 x UARTs, including hardware flow control
3 x SPI
2 x I2S
12 x ADC input channels
2 x DAC
2 x I2C
PWM/timer input/output avalible on every GPIO pin
OpenOCD debug interface with 32 kB TRAX buffer
SDIO master/slave 50 MHz
Supports external SPI flash up to 16 MB
SD-card interface support

Security Related

IEEE 802.11 standard security features all supported, including WFA, WPA/WPA2 and WAPI
Secure boot
Flash encryption
1024-bit OTP, up to 768-bit for customers
Cryptographic hardware acceleration:
– AES
– HASH (SHA-2) library
– RSA
– ECC
– Random Number Generator (RNG)