LOLIN D32 PRO
Enhanced version with more flash and PSRAM - suited for advanced ESP32 projects needing extra memory.
Pinout
8 pins · 2.54 mm pitch| Pin | GPIO | Labels | Status | Capabilities | Notes |
|---|---|---|---|---|---|
| 1 | 4 | TF_CS | strapping | - | |
| 2 | 5 | LED_BUILTIN | strapping | - | |
| 3 | 12 | TS_CS | strapping | - | |
| 4 | 14 | TFT_CS | strapping | - | |
| 5 | 27 | TFT_DC | safe | - | |
| 6 | 32 | TFT_LED | safe | - | |
| 7 | 33 | TFT_RST | safe | - | |
| 8 | 35 | _VBAT | strapping | - |
Start with these
3 pins with no boot or system involvementFreely assignable - no strapping, flash, USB or JTAG duties. Ideal first picks for buttons, sensors and LEDs.
Fine - with a little care
sampled at boot or shared with debug/serial| Pin | Label | What to know | Role |
|---|---|---|---|
| TF_CS | GPIO4 | Sampled at reset for boot config; should not be driven at boot (affects boot mode timing). | Strapping |
| LED_BUILTIN | GPIO5 | Must be HIGH during boot; if pulled LOW at reset, alters SDIO slave timing and may prevent normal boot. | Strapping |
| TS_CS | MTDI (GPIO12) | Keep LOW during boot (internal PD); pulling HIGH at reset selects 1.8V flash mode, causing flash brownout if 3.3V flash is used. | Strapping |
| TFT_CS | MTMS (GPIO14) | Used for JTAG debugging (TMS); driving it as GPIO may interfere with JTAG or produce spurious signals at boot. | Other |
| _VBAT | GPIO35 | Cannot be used as output; only suitable for input. | Other |
Pinout notes All 8 pins on the LOLIN D32 PRO are usable GPIO, spaced at the standard 2.54 mm pitch. 5 of the exposed pins carry boot-time or system duties on the ESP32 (…
All 8 pins on the LOLIN D32 PRO are usable GPIO, spaced at the standard 2.54 mm pitch.
5 of the exposed pins carry boot-time or system duties on the ESP32 (TF_CS, LED_BUILTIN, TS_CS and 2 more) - check the guidance above before wiring anything to them. TFT_DC, TFT_LED and TFT_RST are free of any such role - the safest first picks.
Getting started
flash your first firmware in ~2 minutesBoard: Lolin D32 Pro
Flash Size: 16MB · DIO
Upload Speed: 921600
// blink
pinMode(27, OUTPUT);
digitalWrite(27, LOW); // on (often inverted)[env:d32_pro]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200
upload_speed = 921600esp32:
board: esp32dev
variant: d32_pro
framework:
type: esp-idf
# blink - GPIO27
output:
- platform: gpio
pin: 27
id: led_out
light:
- platform: binary
name: "LED"
output: led_outesptool.py --chip esp32 --port /dev/ttyACM0 \
write_flash 0x0 firmware.binSpecifications
ESP32 · 65 × 25.4 mmAbout this board
Inside sits the ESP32 - a dual-core Xtensa with both Bluetooth Classic and BLE.
At $8.80 it's cheaper than most ESP32 boards, which usually run around $20.
Only 8 GPIO are broken out, where most ESP32 boards manage about 24 - worth checking the pinout covers what you need.
Around the module: 8MB (QSPI) PSRAM, a microSD slot, battery charging (TP4054) via JST-PH 2.0, status LEDs (Built-in, Charging) and Reset buttons.
- LOLIN TFT connector for a plug-in display (no onboard screen - display sold separately)
- LOLIN I2C connector for chainable modules
- V2.0.0 ships with 16MB flash / 8MB PSRAM; earlier V1 has 4MB flash / 4MB PSRAM
Where to buy
prices are typical street pricesResources
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