TTGO T7 V1.3 Mini32

Development Board TTGO_T7_V13_Mini32

ESP32 LILYGO

TTGO T7 V1.3 Mini32 is a development board based on the ESP32 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.

240 MHz CPU 4MB Flash WiFi + BT 4.2

About TTGO T7 V1.3 Mini32

ESP32 Xtensa dual-core 32-bit LX6 · 240 MHz

Compact ESP32 dev board with auto-reset and USB - ideal for space-saving Wi-Fi/BLE applications.

Technical Specifications

Complete technical specification details for TTGO T7 V1.3 Mini32

ESP32 · Dual-Core

Arch

XTENSA

Clock

240 MHz

Flash

4MB

Connectivity

WiFi

802.11 b/g/n (2.4 GHz)

Bluetooth 4.2

Classic + BLE

Digital IO

Analog In

PWM

Interrupts

Quick Setup

Copy-paste configs for TTGO T7 V1.3 Mini32 - auto‑generated from this board's exact hardware specs.

ESP32 240 MHz 4MB DIO Xtensa

In Arduino IDE 2 select Ttgo T7 V13 Mini32 from the esp32 by Espressif package. In PlatformIO use board = esp32dev. ESP32 · 240 MHz · 4MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Ttgo T7 V13 Mini32

CPU Frequency 240 MHz

Flash Size 4MB

Flash Mode DIO

Upload Speed 921600

Architecture Xtensa

In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Ttgo T7 V13 Mini32" for the TTGO T7 V1.3 Mini32.

platformio.ini


[env:ttgo-t7-v13-mini32]
platform  = espressif32
board     = esp32dev
framework = arduino

; Exact hardware config for TTGO T7 V1.3 Mini32
board_build.mcu        = esp32
board_build.f_cpu      = 240000000L
board_build.flash_size = 4MB
board_build.flash_mode = dio
board_upload.flash_size = 4MB

The board value is a close generic match - check PlatformIO board registry for an exact fit.

esp32: block (YAML)


esp32:
  board: esp32dev
  framework:
    type: arduino   # or "esp-idf"

# TTGO T7 V1.3 Mini32 - 240 MHz ESP32
# Flash: 4MB | USB: N/A

Paste into your device's .yaml. See ESPHome ESP32 docs for full options.

esptool.py - flash command


esptool.py \
  --chip esp32 \
  --baud 921600 \
  write_flash \
    --flash_mode dio \
    --flash_size 4MB \
    0x1000 bootloader.bin \
    0x8000    partitions.bin \
    0xe000    boot_app0.bin \
    0x10000   firmware.bin

Install: pip install esptool - replace firmware.bin with your binary - bootloader at 0x1000

TTGO T7 V1.3 Mini32 Pinout Diagram

Complete pin reference for TTGO T7 V1.3 Mini32

Safe Pins to Use

These pins are safe for general GPIO usage without boot or system conflicts.

OLED RST OLED SDA OLED SCL SDCard CS SDCard MOSI SDCard MISO SDCard SCLK LORA MOSI LORA MISO LORA SCLK LORA CS LORA RST LORA DIO0 DS3231 SDA DS3231 SCL LED_BUILTIN ADC1_CH0 DAC1 DAC2

✓ No boot sequence involvement

✓ No flash/PSRAM connections

✓ No USB or JTAG conflicts

✓ Freely assignable without issues

Pins to Avoid or Use with Caution

Reserved for critical functions. Misuse may cause boot failures, programming issues, or system conflicts.

Strapping JTAG USB Flash/SPI UART

Pin	Label	Why Avoid	Type

Useful Links

Datasheets and resources for TTGO T7 V1.3 Mini32

ESP32 Datasheet

Microcontroller reference

TTGO T7 V1.3 Mini32 Custom Pin Mapping

Pin configuration and GPIO mapping for TTGO T7 V1.3 Mini32

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Function	ESP Pin	I/O Type	Description
1	OLED RST	GPIO16	output	OLED Reset
2	OLED SDA	GPIO21	bidirectional	I2C Data Line for OLED
3	OLED SCL	GPIO22	bidirectional	I2C Clock Line for OLED
4	SDCard CS	GPIO5	output	SPI Chip Select for SD Card
5	SDCard MOSI	GPIO23	bidirectional	SPI Master Out Slave In for SD Card
6	SDCard MISO	GPIO19	bidirectional	SPI Master In Slave Out for SD Card
7	SDCard SCLK	GPIO18	bidirectional	SPI Clock Line for SD Card
8	LORA MOSI	GPIO27	bidirectional	SPI Master Out Slave In for LoRa
9	LORA MISO	GPIO19	bidirectional	SPI Master In Slave Out for LoRa
10	LORA SCLK	GPIO5	bidirectional	SPI Clock Line for LoRa
11	LORA CS	GPIO18	output	SPI Chip Select for LoRa
12	LORA RST	GPIO14	output	LoRa Reset
13	LORA DIO0	GPIO26	input	LoRa Interrupt Pin
14	DS3231 SDA	GPIO21	bidirectional	I2C Data Line for DS3231 RTC
15	DS3231 SCL	GPIO22	bidirectional	I2C Clock Line for DS3231 RTC
16	LED_BUILTIN	GPIO2	output	Built-in LED
17	ADC1_CH0	GPIO36	input	Analog Input Channel 0
18	DAC1	GPIO25	output	Digital-to-Analog Converter 1
19	DAC2	GPIO26	output	Digital-to-Analog Converter 2

Legend

Function Pin role

GPIO ESP32 pin

I/O Direction

# Pin number

Pin Mappings

Complete pinout and GPIO mapping for TTGO T7 V1.3 Mini32

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	Touch	PWM	Other
0	A11	T1
1			PWM	TX
2	A12	T2	PWM
3			PWM	RX
4	A10	T0	PWM
5			PWM	SS
12	A15	T5	PWM
13	A14	T4	PWM
14	A16	T6	PWM
15	A13	T3	PWM
18			PWM	SCK
19			PWM	MISO
21			PWM	SDA
22			PWM	LED_BUILTIN SCL
23			PWM	MOSI
25	A18		PWM	DAC1
26	A19		PWM	DAC2
27	A17	T7	PWM
32	A4	T9	PWM
33	A5	T8	PWM
34	A6
35	A7
36	A0
39	A3

Legend

A0 Analog input

T0 Touch sensor

PWM PWM capable

RX/TX Serial pins

LED Built-in LED

# Pin number

Default Tools & Configuration

Build and upload settings for TTGO T7 V1.3 Mini32

Setting	Value
Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	`0x1000`
Flash mode	dio
Boot mode	dio
Maximum upload size	1280 KB (1310720 bytes)
Maximum data size	320 KB (327680 bytes)

Configuration Summary

The TTGO T7 V1.3 Mini32 uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x1000.

Flash mode: dio | Boot mode: dio

Max sketch size: 1280 KB | Max data size: 320 KB

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TTGO T7 V1.3 Mini32

About TTGO T7 V1.3 Mini32

Technical Specifications

Quick Setup

TTGO T7 V1.3 Mini32 Pinout Diagram

Safe Pins to Use

Pins to Avoid or Use with Caution

Useful Links

TTGO T7 V1.3 Mini32 Custom Pin Mapping

Pin Mappings

Default Tools & Configuration

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Contents