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ESPBoards

TTGO T1 Development Board Pinout and Technical Specifications

Code name: TTGO_T1

TTGO T1 development board is based on esp32 microcontroller and uses xtensa architecture. This development board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.


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TTGO T1 Specs

Below you can find the specifications of TTGO T1, such as features, connectivity options, and TTGO T1 technical specs.

Features

  • 40 digital IO pins
  • 16 external interrupt pins
  • 16 analog input pins
  • 16 PWM pins

Connectivity

  • WiFi: 802.11 b/g/n (2.4 GHz)
  • Bluetooth: 4.2
  • WiFi: 4.2

Technical specs

Clock Speed240 MHz
Flash size4MB
Microcontrolleresp32
Architecturextensa

TTGO T1 Pinout

TTGO T1 External Pins Mapping Functions

Below you can find the TTGO T1 pinout. This development board provides 40 digital IO pins, out of which 16 can be used as an external interrupt pins , 16 as analog input pins and 16 pins have Pulse-Width Modulation (PWM) .

PinFunctionESP PinInput/OutputDescription
1OLED RSTGPIO16outputOLED Reset
2OLED SDAGPIO21bidirectionalI2C Data Line
3OLED SCLGPIO22bidirectionalI2C Clock Line
4SDCard CSGPIO13outputSPI Chip Select for SD Card
5SDCard MOSIGPIO15bidirectionalSPI Master Out Slave In for SD Card
6SDCard MISOGPIO2bidirectionalSPI Master In Slave Out for SD Card
7SDCard SCLKGPIO14bidirectionalSPI Clock Line for SD Card
8LORA MOSIGPIO27bidirectionalSPI Master Out Slave In for LoRa
9LORA MISOGPIO19bidirectionalSPI Master In Slave Out for LoRa
10LORA SCLKGPIO5bidirectionalSPI Clock Line for LoRa
11LORA CSGPIO18outputSPI Chip Select for LoRa
12LORA RSTGPIO23outputLoRa Reset
13LORA DIO0GPIO26inputLoRa Interrupt Pin
14DS3231 SDAGPIO21bidirectionalI2C Data Line for DS3231 RTC
15DS3231 SCLGPIO22bidirectionalI2C Clock Line for DS3231 RTC
Function - Pin Function
ESP Pin - Pin on ESP32
Input/Output - Input or Output Pin
Description - Pin Description

TTGO T1 Pins Mapping Arduino IDE

Below you can find the TTGO T1 pinout. This development board provides 40 digital IO pins, out of which 16 can be used as an external interrupt pins , 16 as analog input pins and 16 pins have Pulse-Width Modulation (PWM) .

PinAnalogTouchPWMOther
0A11T1
1PWMTX
2A12T2PWMMISO
3PWMRX
4A10T0PWM
12A15T5PWM
13A14T4PWMSS
14A16T6PWMSCK
15A13T3PWMMOSI
21PWMSDA
22PWMLED_BUILTIN
23PWMSCL
25A18PWMDAC1
26A19PWMDAC2
27A17T7PWM
32A4T9PWM
33A5T8PWM
34A6
35A7
36A0
39A3
Analog - Analog input pins
Touch - Touch pins
Function - Function pins
RX / TX - Receive (RX) / Transmit (TX)
LED_BUILTIN - Built-in LED
PWM - Pulse-Width Modulation

Default Tools

Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modedio
PSRAM type
Maximum upload size
1280 Kb
(1310720 B)
Maximum data size
320 Kb
(327680 B)

The TTGO T1 development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for TTGO T1 development board by default is dio and dio respectively.