M5Stack Cardputer Mesh Kit for Meshtastic

A special M5Stack Cardputer kit designed for LoRa mesh networking with Meshtastic, including a special-colour Cardputer ADV, Cap LoRa 1262 and external antenna.

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The M5Stack Cardputer Mesh Kit for Meshtastic is a portable communication terminal kit that integrates LoRa Mesh networking with global positioning capabilities. The kit centres around a special green-back version of the Cardputer Adv controller and the Cap LoRa 1262 expansion module.

The Cardputer Adv is a card-sized portable programmable controller built on the Stamp-S3A module (based on the ESP32-S3FN8). It features a 1.14" LCD screen and a 56-key compact keyboard for convenient on-site information display and command input. A built-in 1750mAh lithium battery ensures extended standalone operation. It integrates an ES8311 audio codec, MEMS microphone, 1W speaker, and 3.5mm audio jack for voice interaction and audio output.

Additional features include a 6-axis IMU, an infrared emitter, a microSD card slot, Grove interface, and an EXT 2.54-14P expansion bus. The chassis supports magnetic attachment and is compatible with LEGO mounting holes.

The bundled Cap LoRa 1262 serves as the communication expansion module of the kit. It connects to the Cardputer Adv via the EXT 2.54-14P interface, drawing power and control signals directly from the host - plug-and-play with no additional configuration required.

The module is built around the SX1262 LoRa solution, supporting the 868 ~ 923 MHz band with a receive sensitivity of -147 dBm and a transmit power of +22 dBm. An RP-SMA external antenna and RF shielding ensure reliable long-range communication with strong interference immunity. An integrated AT6668 GNSS module with built-in ceramic antenna supports multi-constellation positioning including GPS, BeiDou, GLONASS, and Galileo. The module also includes a Grove interface for connecting external sensors.

The Cardputer Mesh Kit comes pre-installed with Meshtastic firmware, making it ready to use out of the box - no complex development required to join a LoRa Mesh network. The Cardputer Adv and Cap LoRa 1262 work seamlessly together for easy configuration and intuitive positioning, making the kit well-suited for outdoor communications, node deployment, location tracking, and industrial inspection.

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Lithium Battery Shipping: Due to courier restrictions, this product can only be shipped within the United Kingdom. With this item in your cart, your shipping options will be limited and may cost more than our usual rates. Why?

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Features

Core Controller (Cardputer-Adv):

• Stamp-S3A core module (ESP32-S3FN8)
• 56-key keyboard with 160gf comfortable key actuation
• 1.14" LCD screen (240 x 135px)
• ES8311 audio codec + NS4150B amplifier + 1W speaker + MEMS microphone
• 3.5mm audio output jack
• 6-axis IMU BMI270
• Infrared emitter
• microSD card slot
• Built-in 1750mAh lithium battery
• Grove interface + expansion bus
• Magnetic attachment on the back, compatible with LEGO mounting holes

Communication Module (Cap LoRa-1262):

• LoRa modulation technology + GNSS global positioning system
• Operating frequency: 868 ~ 923 MHz
• Receive sensitivity as low as -147 dBm, transmit power +22 dBm
• External RP-SMA antenna interface with built-in ceramic GPS antenna
• Supports GPS / QZSS / BD2 / BD3 / GAL / GLO multi-constellation positioning
• Grove expansion interface (for external sensor connection)
• Development Platform
• Arduino
• UiFlow2
• ESP-IDF
• PlatformIO

Specifications

SoC	ESP32-S3FN8 @ Dual-core Xtensa LX7, up to 240MHz
Flash	8MB
External Storage	microSD
Display	ST7789V2 @ 1.14", 240 x 135px
Keyboard	56 keys (4 x 14), 160gf actuation force
Expansion Interface	HY2.0-4P (Grove) + EXT 2.54-14P
IR	1 x Infrared Emitter
Audio Codec	ES8311
Speaker	NS4150B amplifier + 8Ω @ 1W speaker
Microphone	MEMS microphone, SNR: 65 dB
IMU	BMI270
Battery Capacity	1750mAh
Operating Temperature	0 ~ 40°C
Operating Current	DC 4.2V @ 120.2mA
LoRa Module	SX1262
LoRa Frequency Range	868 ~ 923 MHz
LoRa Programmable Bit Rate	Up to 300kbps
LoRa Antenna	Size: 108 x 9.3mm, Connector: RP-SMA (female), Gain: 3dBi
LoRa Transmit Power	+22dBm
LoRa Receive Sensitivity	-147dBm (low data rate mode)
LoRa Operating Current	DC 5V @ 163.4mA
Supported Modulation	FSK / GFSK / MSK / LoRa / OOK
GPS Module	ATGM336H-6N @ AT6668
GPS Communication Interface	UART, default 115200bps @ 8N1
Supported GNSS Systems	GPS / QZSS / BD2 / BD3 / GAL / GLO
GPS Channels	50 channels
GPS Positioning Accuracy	<1.5m (CEP50)
GPS Update Rate	Up to 10Hz
GPS Time to First Fix	Cold start: 23s, Hot start: 1s

Resources

• Product documentation
• Meshtastic Tutorial
• Datasheets

Package Contents

• 1x Cardputer Adv (Green Back Shell Version)
• 1x Cap LoRa 1262
• 1x LoRa Rubber Duck Antenna (RP-SMA Connector)
• 2x M2 4mm cap head machine screws
• 1x Hex Key (for M2 Screws)
• 1x Safety Warning Sticker