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Turtle Board

$33.00 $29.80

  • Include antenna;
  • Include pin map sticker;
  • Not include battery;
  • 2.54 headers assembled default.
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Category: SKU: zc43 Tags:

The turnkey Turtle board solution can be used immediately. Support standard LoRaWAN protocol and RadioShuttle protocol. The included RadioShuttle radio protocol software enables node-to-node communication without additional routers and servers. The Turtle LoRa board by HelTec Automation can run 10 years on AAA batteries (standard or rechargeable NiMH) using the “RadioShuttle” LoRa wireless low-energy protocol software.

 

About RadioShuttle protocol

RadioShuttle Protocol is a node-to-node LoRa wireless communication protocol software. Compare with LoRaWAN(TM), which is capable of efficiently sending messages in a fast and secure way, any node can work as a gateway. We also provide the MQTT server and IOS / Android APP examples source code.

 

LoRaWANTM RadioShuttle
Concentrator required No concentrator required, the station uses regular LoRa module
Network subscription fees (If use MQTT server) No monthly fees
One large radio cell Many small independent radio cells
Busy network in a radius of many kilometers Small networks with no interference
Single point of failure (Concentrator) Automatic transmitting power adjustment – longer battery life
High latency, larger spreading factor, e.g. SF11 (1320 ms) Low latency, small spreading factor, e.g. SF7 (120 ms)

This product can’t meet your needs? Choose from our LoRa Node Family.

Turtle Board is a highly integrated, fully functional board (part of the ``Heltec LoRa`` series) with the following features:

  • CE Certificate;
  • Microprocessor: STM32L432KC (32-bit ultra-low power MCU) with LoRa node chip SX1276;
  • Micro USB interface with complete protection measures such as voltage regulation, ESD protection, and short circuit protection;
  • Onboard AAA x 2 battery holder, USB / battery power automatically switch;
  • Reserve IPEX and SMA antenna interfaces for LoRa use;
  • Programming and debugging interface can be combined with our downloader
  • Support DFU protocol, which can be downloaded conveniently via USB (combined with “RadioShuttle STM32 Utility”)
  • Professional software support (ARM Mbed IDE);
  • Provide Standard LoRaWAN protocol routines;
  • Good RF circuit design and perfect low-power design (sleep current: 4uA), which is convenient for IoT application vendors to quickly verify solutions and deploy applications;

Technical Parameters

Source

Parameter

MCU

STM32L432KC(Ultra-low-power 32-bit MCU+FPU ARM® Cortex®-M4)

LoRa chip

SX1276

LoRa bands

EU_433, CN_470_510, EU_863_870, US_902_928 four bands optional

LoRa maximum output power

18dB ± 2dB

Hardware Resource

USART x 3; SPI x 2; I2C x 2; SAI x 1; USB 2.0 x 1

12 – bits ADC x 1; 12 – bits DAC x 2

DMA controller

26 general GPIO

Flash

256KB FLASH;64KB SRAM;

Interface

Micro USB x 1; LoRa antenna(SMA) x 1,Debug interface(8-Pin)

Size

56.6 x 24 x 20 mm

Battery Type

AAA x 2

Battery detection circuit

External device power control(Vext)

Low power design

Deep Sleep: 4uA

 

Electrical characteristics

 

Electrical characteristics condition Minimum Typical Maximum
Power Supply USB powered(≥500mA) 4.7V 5V 6V
Lithium powered(≥250mA) 1.8V 3V 3V
3.3V(pin)powered(≥150mA) 2.7V 3.3V 3.5V
5V(pin)powered(≥500mA) 4.7V 5V 6V
Power consumption(mA) LoRa 10dB emission 50mA
LoRa 12dB emission 60mA
LoRa 15dB emission 110mA
LoRa 20dB emission 130mA
Output 3.3V pin output 500mA
5V pin output (USB powered only) Equal to the input current
External device power control (Vext 3.3V) 350mA

Know more about RadioShuttle Protocol

RadioShuttle STM32 Utility (DFU Tools Special for Turtle Board)

Heltec LoRa Node Porducts Difference Table (Product Selection Table)

More Technical Data

More technical information will be sent to you by mail after purchase.

No email received after buy? Please contract us vis this email: support@heltec.cn

Over View

Turtle Board is a highly integrated, fully functional board (part of the ``Heltec LoRa`` series) with the following features:

  • CE Certificate;
  • Microprocessor: STM32L432KC (32-bit ultra-low power MCU) with LoRa node chip SX1276;
  • Micro USB interface with complete protection measures such as voltage regulation, ESD protection, and short circuit protection;
  • Onboard AAA x 2 battery holder, USB / battery power automatically switch;
  • Reserve IPEX and SMA antenna interfaces for LoRa use;
  • Programming and debugging interface can be combined with our downloader
  • Support DFU protocol, which can be downloaded conveniently via USB (combined with “RadioShuttle STM32 Utility”)
  • Professional software support (ARM Mbed IDE);
  • Provide Standard LoRaWAN protocol routines;
  • Good RF circuit design and perfect low-power design (sleep current: 4uA), which is convenient for IoT application vendors to quickly verify solutions and deploy applications;
Tech Specs

Technical Parameters

Source

Parameter

MCU

STM32L432KC(Ultra-low-power 32-bit MCU+FPU ARM® Cortex®-M4)

LoRa chip

SX1276

LoRa bands

EU_433, CN_470_510, EU_863_870, US_902_928 four bands optional

LoRa maximum output power

18dB ± 2dB

Hardware Resource

USART x 3; SPI x 2; I2C x 2; SAI x 1; USB 2.0 x 1

12 – bits ADC x 1; 12 – bits DAC x 2

DMA controller

26 general GPIO

Flash

256KB FLASH;64KB SRAM;

Interface

Micro USB x 1; LoRa antenna(SMA) x 1,Debug interface(8-Pin)

Size

56.6 x 24 x 20 mm

Battery Type

AAA x 2

Battery detection circuit

External device power control(Vext)

Low power design

Deep Sleep: 4uA

 

Electrical characteristics

 

Electrical characteristics condition Minimum Typical Maximum
Power Supply USB powered(≥500mA) 4.7V 5V 6V
Lithium powered(≥250mA) 1.8V 3V 3V
3.3V(pin)powered(≥150mA) 2.7V 3.3V 3.5V
5V(pin)powered(≥500mA) 4.7V 5V 6V
Power consumption(mA) LoRa 10dB emission 50mA
LoRa 12dB emission 60mA
LoRa 15dB emission 110mA
LoRa 20dB emission 130mA
Output 3.3V pin output 500mA
5V pin output (USB powered only) Equal to the input current
External device power control (Vext 3.3V) 350mA
Docs & Resource

Know more about RadioShuttle Protocol

RadioShuttle STM32 Utility (DFU Tools Special for Turtle Board)

Heltec LoRa Node Porducts Difference Table (Product Selection Table)

More Technical Data

More technical information will be sent to you by mail after purchase.

No email received after buy? Please contract us vis this email: support@heltec.cn

Test Info
Accessories