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LilyGo logo

🌟LilyGo T-LoRa-Pager🌟

1 Overview

  • This page introduces the hardware parameters related to LilyGO T-LoRa-Pager

/---------------------------------------------------\
| ┌───────────────────────────────────────────┐ |-| |
| |                                           | |/| |
| |               480 x 222 IPS               | |/| |  
| |                                           | |/| |
| └───────────────────────────────────────────┘ |-| |
|                                                   |
|                                                   |
|                                                   |
|                                                   |
\---|RST|--|BOOT|--|POWER|--|SD SOCKET|--|USB-C|----/
      ^       ^       ^          ^           ^
      |       |       |          |           |
      |       |       |          |           └─── The adapter is used as a charging and 
      |       |       |          |                programming interface, and the USB-C can 
      |       |       |          |                be programmed to power external devices
      |       |       |          |      
      |       |       |          └────── Supports up to 32 GB SD memory card
      |       |       |               
      |       |       └───────────── The power button is only valid when the device is 
      |       |                     turned off and cannot be customized or program controlled.
      |       |
      |       └───────────────────── (GPIO0) Custom Button or Enter download Mode
      |
      └───────────────────────────── Click to reset the device, 
                                     it cannot be programmed or controlled by the program

Extension interface


>----------Place the screen facing up---------------<
|---------------------------------------------------|
|     | SCL | SDA | MISO  | SCK  | TX | GND  |      |
|     | 5V  | CE  | GPIO9 | MOSI | RX | 3.3V |      |
|---------------------------------------------------|

* CE is XL9555 GPIO9
* TX is ESP32-S3 GPIO43
* RX is ESP32-S3 GPIO44
* MISO is ESP32-S3 GPIO33
* MOSI is ESP32-S3 GPIO34
* SCK is ESP32-S3 GPIO35
* SDA is ESP32-S3 GPIO3
* SCL is ESP32-S3 GPIO2

nRF24L01 PA Shield interface

>----------Place the screen facing up---------------<
|---------------------------------------------------|
|     | SCL | SDA | MISO  | SCK  | TX | GND  |      |
|     | 5V  | CE  | GPIO9 | MOSI | RX | 3.3V |      |
|---------------------------------------------------|

* CE is XL9555 GPIO9 , nRF24L01 Shield Tx/Rx Control, LOW:Rx HIGH:Tx
* TX is ESP32-S3 GPIO43, nRF24L01 Shield CE Pin
* RX is ESP32-S3 GPIO44, nRF24L01 Shield CS Pin
* MISO is ESP32-S3 GPIO33, nRF24L01 Shield MISO Pin
* MOSI is ESP32-S3 GPIO34, nRF24L01 Shield MOSI Pin
* SCK is ESP32-S3 GPIO35, nRF24L01 Shield SCK Pin
* SDA is ESP32-S3 GPIO3, nRF24L01 Shield No Connect
* SCL is ESP32-S3 GPIO2, nRF24L01 Shield No Connect

✨ Hardware-Features

Features Params
SOC Espressif ESP32-S3
Flash 16MB(QSPI)
PSRAM 8MB (QSPI)
GNSS UBlox MIA-M10Q
LoRa Semtech SX1262
NFC ST25R3916
Smart sensor Bosch BHI260AP
Real-Time Clock NXP PCF85063A
Battery Charger Ti BQ25896
Battery Gauge Ti BQ27220
Haptic driver Ti DRV2605
Audio Codec Everest-semi ES8311
GPIO Expand XINLUDA XL9555
I2C Keyboard Ti TCA8418
Audio Power Amplifier Nsiway NS4150B(3W Class D)
Display Backlight Driver AW9364 16-Level Led Driver
SD Card Socket ✅️ Maximum 32GB (FAT32 format)
External low speed clock crystal ✅️

Tip

  • SD card only supports FAT format, please pay attention to the selection of SD format
  • Device shutdown can only shut down the device when no USB is connected.
  • The PWR button can only be used to wake up the device by pressing it for one second when the device is turned off. It cannot be used for programming.
  • ST25R3916 (NFC) does not have an integrated capacitive sensor, which means that to read a card, the reader must be turned on, and the presence of a card cannot be detected by turning on the capacitive sensor.
  • ESP32-S3 uses an external QSPI Flash and PSRAM solution, not a built-in PSRAM or Flash solution

✨ Display-Features

Features Params
Resolution 480 x 222
Display Size 2.33 Inch
Luminance on surface 450 cd/m²
Driver IC ST7796U (SPI)
Contrast ratio 1000:1
Color gamut 70%
PPI 221
Display Colors 262K
View Direction All (IPS)
Operating Temperature -20～70°C

📍 Pins Map

Name GPIO NUM Free
Custom Pin GPIO9 (External 12-Pin socket) ✅️
Uart1 TX 43(External 12-Pin socket) ✅️
Uart1 RX 44(External 12-Pin socket) ✅️
SDA 3 ❌
SCL 2 ❌
SPI MOSI 34 ❌
SPI MISO 33 ❌
SPI SCK 35 ❌
SD CS 21 ❌
SD MOSI Share with SPI bus ❌
SD MISO Share with SPI bus ❌
SD SCK Share with SPI bus ❌
Keyboard(TCA8418) SDA Share with I2C bus ❌
Keyboard(TCA8418) SCL Share with I2C bus ❌
Keyboard(TCA8418) Interrupt 6 ❌
Keyboard Backlight 46 ❌
Rotary Encoder A 40 ❌
Rotary Encoder B 41 ❌
Rotary Encoder Center 7 ❌
RTC(PCF85063A) SDA Share with I2C bus ❌
RTC(PCF85063A) SCL Share with I2C bus ❌
RTC(PCF85063A) Interrupt 1 ❌
NFC(ST25R3916) CS 39 ❌
NFC(ST25R3916) Interrupt 5 ❌
NFC(ST25R3916) MOSI Share with SPI bus ❌
NFC(ST25R3916) MISO Share with SPI bus ❌
NFC(ST25R3916) SCK Share with SPI bus ❌
Sensor(BHI260) Interrupt 8 ❌
Sensor(BHI260) SDA Share with I2C bus ❌
Sensor(BHI260) SCL Share with I2C bus ❌
Audio Codec(ES8311) WS 18 ❌
Audio Codec(ES8311) SCK 11 ❌
Audio Codec(ES8311) MCLK 10 ❌
Audio Codec(ES8311) data out 45 ❌
Audio Codec(ES8311) data in 17 ❌
Audio Codec(ES8311) SDA Share with I2C bus ❌
Audio Codec(ES8311) SCL Share with I2C bus ❌
GNSS(MIA-M10Q) TX 12 ❌
GNSS(MIA-M10Q) RX 4 ❌
GNSS(MIA-M10Q) PPS 13 ❌
LoRa(SX1262 or SX1280) SCK Share with SPI bus ❌
LoRa(SX1262 or SX1280) MISO Share with SPI bus ❌
LoRa(SX1262 or SX1280) MOSI Share with SPI bus ❌
LoRa(SX1262 or SX1280) RESET 47 ❌
LoRa(SX1262 or SX1280) BUSY 48 ❌
LoRa(SX1262 or SX1280) CS 36 ❌
LoRa(SX1262 or SX1280) Interrupt 14 ❌
Display CS 38 ❌
Display MOSI Share with SPI bus ❌
Display MISO Share with SPI bus ❌
Display SCK Share with SPI bus ❌
Display DC 37 ❌
Display RESET Not Connected ❌
Display Backlight(16 Level) 42 ❌
Gauge(BQ27220) SDA Share with I2C bus ❌
Gauge(BQ27220) SCL Share with I2C bus ❌
Charger(BQ25896) SDA Share with I2C bus ❌
Charger(BQ25896) SCL Share with I2C bus ❌
Haptic Driver(DRV2605) SDA Share with I2C bus ❌
Haptic Driver(DRV2605) SCL Share with I2C bus ❌
Expand(XL9555) SDA Share with I2C bus ❌
Expand(XL9555) SCL Share with I2C bus ❌
Expand(XL9555) GPIO0 Haptic Driver Enable ❌
Expand(XL9555) GPIO1 Audio Power Amplifier Enable ❌
Expand(XL9555) GPIO2 Keyboard RESET ❌
Expand(XL9555) GPIO3 LoRa Power supply Enable ❌
Expand(XL9555) GPIO4 GNSS Power supply Enable ❌
Expand(XL9555) GPIO5 NFC Power supply Enable ❌
Expand(XL9555) GPIO6 Display RESET (No connect) ❌
Expand(XL9555) GPIO7 GNSS RESET ❌
Expand(XL9555) GPIO10 Keyboard Power supply Enable ❌
Expand(XL9555) GPIO11 External 12-Pin socket ✅️
Expand(XL9555) GPIO12 SD Insert Detect ❌
Expand(XL9555) GPIO14 SD Power supply Enable ❌

🧑🏼‍🔧 I2C Devices Address

Devices 7-Bit Address Share Bus
Codec ES8311 0x18 ✅️
Expands IO XL9555 0x20 ✅️
Smart sensor BHI260AP 0x28 ✅️
Real-Time Clock PCF85063A 0x51 ✅️
PowerManage BQ25896 0x6B ✅️
Gauge BQ27220 0x55 ✅️
Keyboard TCA8418 0x34 ✅️
Haptic driver DRV2605 0x5A ✅️

⚡ PowerManage Channel

Channel Peripherals
Expand(XL9555) GPIO0 DRV2605 Enable
Expand(XL9555) GPIO1 Speaker
Expand(XL9555) GPIO3 LoRa
Expand(XL9555) GPIO4 GNSS
Expand(XL9555) GPIO5 NFC
Expand(XL9555) GPIO8 Keyboard
Expand(XL9555) GPIO14 SD Card

⚡ Electrical parameters

Features Details
🔗USB-C Input Voltage 3.9V-6V
🔗USB-C Output Voltage 4.55-5.55V
⚡USB-C Output Current 0.5-1A
⚡Charge Current 0-3008mA((Programmable))
🔋Battery Voltage 3.7V
🔋Battery capacity 1500mA ((5.55Wh))
🔋Charge Temperature Range 0~60°

Important

⚠️ Recommended to use a charging current lower than 750mA. The charging current should not be greater than half of the battery capacity

⚡ Power consumption reference

Mode Wake-Up Mode Current
DeepSleep BootButton 530uA
DeepSleep Timer 530uA
LightSleep BootButton ~2.26mA
Power OFF PowerButton 26uA

Resource