Heltec LoRa Node Products Difference Table
“Heltec LoRa” product family already included follow options
LoRa spread spectrum communication (node);
Battery powered;
Good RF circuit design and impedance matching.
Product:Type↘:MCU:FLASH:Battery:Battery Detect:Vext:Low Power:Display
WiFi LoRa 32:Dev-Board:ESP32:4MB:Lithium:x:x:x:OLED (128×64)
WiFi LoRa 32(V2)
(Product ID:1639291):Dev-Board:ESP32:8MB:Lithium:￡:￡:800uA:OLED (128×64)
Wireless Stick
(Product ID:1639290):Dev-Board:ESP32:8MB:Lithium:￡:￡:800uA:OLED (64×32)
Wireless Stick Lite
(Product ID:1638098):Dev-Board:ESP32-PICO:4MB:Lithium:￡:￡:35uA:x
Wireless Shell
(Product ID:1638101):Module:ESP32-PICO:4MB:￡:x:10uA:x
LoRa Kit 151
(Product ID:1639289):Dev-Board:STM32L151CBU6:128kB:Lithium:x:x:7uA:x
LoRa Node 151
(Product ID:1638100):Dev-Board:STM32L151CCU6:256kB:1/2 AA Lithium chlorine sulfite battery:￡:￡:1.8uA:x
Turtle Board
(This item):Dev-Board:STM32L432KC:256kB:AAA x 2:￡:￡:5uA:x
Notes
↘ Type
Dev-Board Can be used directly;
Module Only core function, need to cooperate with external PCB or circuit.
Lithium:All lithium battery socket for Heltec boards is SH1.25-2;
Vext:3.3V(500mA) output, for external devices (e.g. sensors) power supply, in deep sleep mode, Vext can be shut down via software;
Low Power:Products’ low power design, of Whole Circuit, the measured data are the current of the system during deep sleep.
Introduction
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 radiu 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)
Feature
-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 solution and deploy applications;
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: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
Package includes
1 x Turtle Board
1 x Box
File support
PDF Data Sheet
https://www.radioshuttle.de/wp-content/uploads/2019/03/Turtle-Data_sheet.pdf
Know more about Turtle Board
https://www.radioshuttle.de/en/turtle-en/turtle-board-en/
Know more about RadioShuttle Protocol
https://www.radioshuttle.de/en/radioshuttle-en/protocol/
RadioShuttle STM32 Utility (DFU Tools Special for Turtle Board)
https://www.radioshuttle.de/en/turtle-en/radioshuttle-stm32-utility-en/
Turtle Board Pin out Diagram
https://docs.heltec.cn/download/Turtle_Board.pdf
Additional information
| Weight | 0.1 kg |
|---|
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