FireBeetle 2 ESP32-C5 IoT Development Board (Wi-Fi 6, Solar Charging)

ESP32-C5-based development board with dual-band 2.4/5 GHz Wi-Fi 6, BLE 5, Zigbee 3.0, and Thread 1.3. Powers via USB-C, 5V VIN, or a 4.5–6V solar panel into the PH2.0 Li battery connector; deep-sleep current is 21 µA.

Logical pinout · physical placement not verified

Type-COfficial table 7 row 1
Type-C USB port
Type · Unknown
ChargeOfficial table 7 row 2
Charging indicator light > Off: No power connected or fully charged > Steady on: Charging in progress
Type · Unknown
D1315Official table 7 row 3
onboard LED pin
Type · GPIO, Unknown
RSTOfficial table 7 row 4
Reset button
Type · Control
28BOOTOfficial table 7 row 5
GPIO28 pin/BOOT button
Type · GPIO, Control
BATOfficial table 7 row 6
Lithium battery interface, supporting 3.7~4.2V
Type · Power
IO1Official table 7 row 7
Battery voltage detection pin
Type · GPIO
3V3_COfficial table 7 row 8
IO0 controls 3.3V power output, default off, can be turned on with high level.
Type · Power
GDIOfficial table 7 row 9
GDI display interface
Type · GPIO
ESP32-C5Official table 7 row 10
Module model is ESP32-WROOM-1-N4
Type · Unknown

Pin	Position	Type	Function
Type-C	Official table 7 row 1	Unknown	Type-C USB port
Charge	Official table 7 row 2	Unknown	Charging indicator light > Off: No power connected or fully charged > Steady on: Charging in progress
D1315	Official table 7 row 3	GPIO, Unknown	onboard LED pin
RST	Official table 7 row 4	Control	Reset button
28BOOT	Official table 7 row 5	GPIO, Control	GPIO28 pin/BOOT button
BAT	Official table 7 row 6	Power	Lithium battery interface, supporting 3.7~4.2V
IO1	Official table 7 row 7	GPIO	Battery voltage detection pin
3V3_C	Official table 7 row 8	Power	IO0 controls 3.3V power output, default off, can be turned on with high level.
GDI	Official table 7 row 9	GPIO	GDI display interface
ESP32-C5	Official table 7 row 10	Unknown	Module model is ESP32-WROOM-1-N4

Logical pinout · physical placement not verified

Pin details

10 connections

Type-C
Type-C USB port
Unknown
Official table 7 row 1
Charge
Charging indicator light > Off: No power connected or fully charged > Steady on: Charging in progress
Unknown
Official table 7 row 2
D1315
onboard LED pin
GPIO, Unknown
Official table 7 row 3
RST
Reset button
Control
Official table 7 row 4
28BOOT
GPIO28 pin/BOOT button
GPIO, Control
Official table 7 row 5
BAT
Lithium battery interface, supporting 3.7~4.2V
Power
Official table 7 row 6
IO1
Battery voltage detection pin
GPIO
Official table 7 row 7
3V3_C
IO0 controls 3.3V power output, default off, can be turned on with high level.
Power
Official table 7 row 8
GDI
GDI display interface
GPIO
Official table 7 row 9
ESP32-C5
Module model is ESP32-WROOM-1-N4
Unknown
Official table 7 row 10

ESP32

158 other options

Wi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.

View all 158

Related groups

4 groups

Arduino

About 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.

Boards · Arduino boards · 77 parts

Add-ons

About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.

Boards · HATs, Shields & add-ons · 270 parts

Other MCUs

Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.

Boards · Other MCU boards · 229 parts

Pi Pico

The Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.

Boards · Pico & RP2040 boards · 43 parts