This Arduino library allows ESP32 to send LINE Notify message, sticker, SD card image and camera image.

The library was test and work well with ESP32s based module.

Copyright (c) 2019 K. Suwatchai (Mobizt).

This following devices were tested and work well.

• Sparkfun ESP32 Thing
• NodeMCU-32
• WEMOS LOLIN32

• Support sending text, sticker, Flash image, SD card image, and camera image.

• Able to show remang each message type quota.

Required HTTPClientESP32Ex library to be installed. https://github.com/mobizt/HTTPClientESP32Ex

Click on Clone or download dropdown at the top of repository, select Download ZIP and save file on your computer.

From Arduino IDE, goto menu Sketch -> Include Library -> Add .ZIP Library... and choose Line-Notify-ESP32-master.zip that previously downloaded.

Go to menu Files -> Examples -> Line-Notify-ESP32-master and choose one from examples

See full examples for all features usages.

The LINE Notify Service's credentials initialization.

param token - LINE Notify token String.

init(const String &token);

Set the LINE Notify token.

param token - LINE Notify token string.

void setToken(const String &token);

Send text message.

param client - SSL WiFi client from WiFiClientSecure initialization.

param msg - The text message String to be send.

return The LineStatus structed value, SENT_COMPLETED = 0, SENT_FAILED = 1, CONNECTION_FAILED = 2.

uint8_t sendLineMessage(HTTPClientESP32Ex &http, const String &msg);

Send text message with sticker.

param client - SSL WiFi client from WiFiClientSecure initialization.

param msg - The text message String to be send.

param stickerPackageId - Sticker Package ID number to send, see https://devdocs.line.me/files/sticker_list.pdf for STKPKGID.

param stickerId - Sticker ID number to send, see https://devdocs.line.me/files/sticker_list.pdf for STKID.

return The LineStatus structed value, SENT_COMPLETED = 0, SENT_FAILED = 1, CONNECTION_FAILED = 2.

uint8_t sendLineSticker(HTTPClientESP32Ex &http, const String &msg, uint16_t stickerPackageId, uint16_t stickerId);

Send Image message. The image data from flash memory or EEPROM

param client - SSL WiFi client from WiFiClientSecure initialization.

param msg - The text message String to be send.

param fileName - The user's specified file name String.

param imageData - The byte data of image from memory or EEPROM.

param imageLength - The byte length of image data.

return The LineStatus structed value, SENT_COMPLETED = 0, SENT_FAILED = 1, CONNECTION_FAILED = 2.

uint8_t sendLineImageData(HTTPClientESP32Ex &http, const String &msg, const String &fileName, const uint8_t *imageData, size_t imageLength);

Send Image message. The image data from web URL.

param client - SSL WiFi client from WiFiClientSecure initialization.

param msg - The text message String to be send.

param imageURL - The image URL String.

return The LineStatus structed value, SENT_COMPLETED = 0, SENT_FAILED = 1, CONNECTION_FAILED = 2.

uint8_t sendLineImageURL(HTTPClientESP32Ex &http, const String &msg, const String &imageURL);

Send Image message. The image data from SPI Flash File.

param client - SSL WiFi client from WiFiClientSecure initialization.

param msg - The text message String to be send.

param filePath - The image file name and path String inside SPIF.

return The LineStatus structed value, SENT_COMPLETED = 0, SENT_FAILED = 1, CONNECTION_FAILED = 2.

uint8_t sendLineImageSPIF(HTTPClientESP32Ex &http, const String &msg, const String &filePath);

Send Image message. The image data from SD card File.

param client - SSL WiFi client from WiFiClientSecure initialization.

param msg - The text message String to be send.

param filePath - The image file name and path String inside SD card.

return The LineStatus structed value, SENT_COMPLETED = 0, SENT_FAILED = 1, CONNECTION_FAILED = 2.

uint8_t sendLineImageSD(HTTPClientESP32Ex &http, const String &msg, const String &filePath);

Get the text message limit.

return The limit count of sending text message.

uint16_t textMessageLimit(void);

Get the image message limit.

return The limit count of sending image message.

uint16_t imageMessageLimit(void);

Get the remaining count of sending text message.

return The remaining count of sending text message.

uint16_t textMessageRemaining(void);

Get the remaining count of sending image message.

return The remaining count of sending image message.

uint16_t imageMessageRemaining(void);

End Line Notify.

void end(void);