Pycom GPy

Development Board

Code name: PYCOM_GPY

ESP32

Pycom GPy is a development board based on the ESP32 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 8MB flash memory.

About Pycom GPy

ESP32 board with LTE CAT-M1/NB-IoT and Wi-Fi - designed for low-power cellular IoT applications.

Technical Specifications

Complete technical specification details for Pycom GPy

Connectivity

WiFi 802.11 b/g/n (2.4 GHz)

Bluetooth 4.2

BLE 4.2

Microcontroller

Model esp32

Clock Speed 240 MHz

Flash Size 8MB

Architecture xtensa

✨ Features & Pins

Digital IO 40

Analog Input 18

PWM 20

Interrupts 16

Quick Setup

Copy-paste configs for Pycom GPy - auto‑generated from this board's exact hardware specs.

ESP32 240 MHz 8MB DIO Xtensa

In Arduino IDE 2 select Pycom Gpy from the esp32 by Espressif package. In PlatformIO use board = esp32dev. ESP32 · 240 MHz · 8MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Pycom Gpy

CPU Frequency 240 MHz

Flash Size 8MB

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 "Pycom Gpy" for the Pycom GPy.

platformio.ini


[env:gpy]
platform  = espressif32
board     = esp32dev
framework = arduino

; Exact hardware config for Pycom GPy
board_build.mcu        = esp32
board_build.f_cpu      = 240000000L
board_build.flash_size = 8MB
board_build.flash_mode = dio
board_upload.flash_size = 8MB

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"

# Pycom GPy - 240 MHz ESP32
# Flash: 8MB | 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 8MB \
    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

Useful Links

Datasheets and resources for Pycom GPy

ESP32 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Pycom GPy

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	Touch	PWM	Other
0	A11	T1		LED_BUILTIN
1			PWM	TX
2	A12	T2	PWM
3			PWM	RX
4	A10	T0	PWM
5			PWM	LTE_TX
12	A15	T5	PWM	SDA
13	A14	T4	PWM	SCL SCK
14	A16	T6	PWM
15	A13	T3	PWM
17			PWM	SS
18			PWM	LTE_CTS
19			PWM	LTE_RTS
21			PWM	ANT_SELECT
22			PWM	MOSI
23			PWM	LTE_RX
25	A18		PWM	DAC1
26	A19		PWM	DAC2
27	A17	T7	PWM	LTE_WAKE
32	A4	T9	PWM
33	A5	T8	PWM
34	A6
35	A7
36	A0
37	A1			MISO
38	A2
39	A3
921600				LTE_BAUD

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 Pycom GPy

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)