Contents

• Pinout
• Arduino IDE setting
• Arduino Library
• Set Library Parameter
• Feature Work
• Variable
• Notices

Pinout

ESP12F	volt
Vcc	3.3v
GND	GND
CH_PD	3.3V
TX	RX
RX	TX
GPIO0	HISH(LOW when upload)
Reset	HIGH(LOW when used)

ENC28J60	Volt
Vcc	3.1V~3.6V(3.3V typical)
GND	GND

❗❗❗
ESP8266 use 3.3V BUT! you can use a voltage regulator ([ASM1117-3.3](http://www.advanced-monolithic.com/pdf/ds1117.pdf )) AMS1117-3.3 Vin=5V, Vout=3.3V
So you can use 5V voltage.

Arduino IDE setting

Type	Parameter
Board	Generic ESP8266 Module
Flash Mode	QIO
Flash Frequency	40MHz
CPU Frequency	80MHz
Flash size	4M(1M SPIFFS)
Debug port	disabled
Debug Level	None
Reset Method	ck
Upload Speed	115200

Board

• ESP8266 by ESP8266 Community ver 2.4.2

Arduino Library:

• pubsubclient v2.6.0 ( API )
• UIPEthernet v2.0.7
• ArduinoJson v5.13.1

Set Library Parameter

[UIPEthernet/utility/uipethernet-conf.h]
    #define UIP_SOCKET_NUMPACKETS    2
    #define UIP_CONF_MAX_CONNECTIONS 2
    #define UIP_CONF_UDP_CONNS 1 //reduce memory usage
    #define UIP_CONNECT_TIMEOUT 5
[pubsubclient/src/PubSubClient.h]
    #define MQTT_MAX_PACKET_SIZE 512

Feature Work

1. 用bs170替換
2. 寫Init()
3. arduinojson library update to 6.10.1 version
4. Pubsubclient library update from 2.6.0 to 2.7.0

Variable

• ServerIP/host : char array, global variable
• ServerPort : #define , global variable

‼️

Notices

1.make sure that memory usage and point are used carefully

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