Heltec T114 Mesh Node Owner’s Manual

Heltec T114 Mesh Node

Specifikationer

• Product Name: Mesh Node T114
• Model: T114
• Batch/Serial Number: 1005007917409559
• MCU: nRF52840 (Bluetooth)
• LoRa Chipset: SX1262
• Display: 1.14 inch TFT-LCD (Optional) – 135(H)RGB x 240(V)
  dots, up to 262k colors
• Interfaces: 2*1.25mm LiPo connector, 2*1.25mm Solar panel
  connector, 8*1.25mm GNSS module connector
• Operating Conditions: -20°C to 70°C, 90% RH
  (Ikke-kondenserende)

Produktbrugsvejledning

Sikkerhed og advarsler:

Read all instructions before use. Failure to follow these instructions may result in damage to the product or personal injury.

• Do not plug or unplug chips, modules, or wires when the device is powered on.
• Handle with care; do not press, drop, or touch exposed pins with metal tools.
• Place in a well-ventilated and dry area; keep away from heat sources and direct sunlight.

Brugsanvisning

Mandatory steps for using the Mesh Node T114:

1. Sørg for, at enheden er slukket, før du foretager nogen tilslutninger.
2. Connect necessary peripherals using the provided interfaces.
3. If using the optional TFT-LCD display, follow the display setup instructions.
4. Operate the device within the specified temperature and humidity range.
5. Refer to the provided Arduino development frameworks and libraries for programming guidance.

Produktinformation

• Product Name: [Mesh Node T114]
• Model: [T114]
• Batch/Serial Number: [1005007917409559]

Overholdelsesoplysninger

Symbolforklaring
Indicates that the product complies with the essential requirements of the relevant European directives and serves as evidence that the product has passed the corresponding conformity assessment procedures and/or manufacturer’s declaration of conformity

Vigtige sikkerhedsoplysninger

Sikkerhed og advarsler

Read all instructions before use. Failure to follow these instructions may result in damage to the product or personal injury.

1. Warning: Keep the device and its cord out of reach of children under 3 years old.
2. Keep away from children unless supervised by an adult.
3. Do not use this product for purposes other than its intended use (for R&D and learning only).
4. Inspect the product before each use; do not use if damaged (e.g., broken cord, damaged interface).
5. Follow installation and operation guidelines to avoid injury and device damage.
6. This is an electrical product; do not expose to water or moisture.
7. Use a qualified power adapter matching the device’s rated specifications; do not reverse positiveand n egative poles.
8. Do not plug or unplug chips, modules or wires when the device is powered on.
9. Handle with care; do not press, drop or touch exposed pins with metal tools.
10. Place in a well-ventilated and dry area; keep away from heat sources and direct sunlight.

Brugsanvisning

Mesh Node T114Dokumentversion

Version	Tid	Beskrivelse	Bemærkning
Rev. 1.0	2024-5-16	Foreløbig version	Richard
Rev. 2.0	2024-10-18	V2	Richard

Ophavsretsmeddelelse
Alt indhold i files er beskyttet af loven om ophavsret, og alle ophavsrettigheder er forbeholdt Chengdu Heltec Automation Technology Co., Ltd. (herefter benævnt Heltec). Uden skriftlig tilladelse kan al kommerciel brug af files fra Heltec er forbudt, såsom kopiere, distribuere, reproducere files, etc., but non-commercial purposes, downloading or printing by individuals is welcome.

Ansvarsfraskrivelse
Chengdu Heltec Automation Technology Co., Ltd. forbeholder sig retten til at ændre, modificere eller forbedre dokumentet og produktet beskrevet heri. Dens indhold kan ændres uden varsel. Disse instruktioner er beregnet til dig.

Beskrivelse

Overview
Mesh Node T114 is a development board based on nRF52840 and SX1262, supports LoRa communication and Bluetooth 5.0, and provides a variety of power interfaces (5V USB, lithium battery and solar panel), optional 1.14 inch TFT display and GPS module as accessories.
Mesh Node T114 has powerful long-distance communication capabilities, scalability, and low power design, which make it excellent in a wide range of application scenarios such as smart cities, agricultural monitoring, logistics tracking, etc. With Heltec nRF52 development environment and libraries , you can use it for
LoRa/LoRaWAN development work, as well as to run some open source projects, such as Meshtastic.
Mesh Node T114 are available in 2 product variants①:

Ingen.	Model	Beskrivelse
1	HT-n5262-LF	470~510MHz arbejds LoRa-frekvens, brugt til Kina   fastlandet (CN470) LPW-bånd.
2	HT-n5262-HF	For EU868, IN865, US915, AU915, AS923, KR920 and other LPW networks with operating frequencies between 863~928MHz.

Produktegenskaber

• MCU nRF52840 (Bluetooth), LoRa-chipsæt SX1262.
• Lavt strømforbrug, 11 uA i dyb søvn.
• Kraftig skærmfunktion (valgfri), indbygget 1.14 tommer TFT-LCD-skærm indeholder 135(H)RGB x240(V)-punkter og kan vise op til 262 farver.
• Type-C USB-interface med en komplet voltage-regulator, ESD-beskyttelse, kortslutningsbeskyttelse, RF-afskærmning og andre beskyttelsesforanstaltninger.
• Forskellige grænseflader (2*1.25 mm LiPo-stik, 2*1.25 mm solpanelstik, 8*1.25 mm GNSS-modulstik), som i høj grad øger kortets udvidelsesmuligheder.
• Driftstilstand: -20 ~ 70 ℃, 90% RH (ingen kondensering).
• Kompatibel med Arduino, og vi leverer Arduino-udviklingsrammer og biblioteker.

Pin definition
About SPI, I2C, UART, PWM, QPSI, I2S, PDM, QDEC: Each IO pin is preconfigured with IO_MUX functionality, which means you can use any GPIO as peripheral pins. You just need to define these pins in your code.
However, it’s important to note that once a pin is used, it may affect other functions associated with that pin. For information, please refer to the Schemaic diagram.

Pin kort

Pin definition

p1                                                                                       p2

Navn	Type	Beskrivelse		Navn	Type	Beskrivelse
5V	P	5V strøm.		Ve	P	3V3 strøm.
GND	P	Jord.		GND	P	Jord.
3V3	P	3.3V strøm.		0.08	I/O	GPIO8.
GND	P	Jord.		0.07	I/O	GPIO7.
0.13	I/O	GPIO13.		1.12	I/O	GPIO44.

0.16	I/O	GPIO16.		1.14	I/O	GPIO46.
RST	I/O	NULSTIL.		0.05	I/O	GPIO5.
1.01	I/O	GPIO33.		1.15	I/O	GPIO47.
SWD	I/O	SWDIO.		1.13	I/O	GPIO45.
SWC udvidelse	I/O	SWCLK.		0.31	I/O	GPIO31.
SWO	I/O	SWO.		0.29	I/O	GPIO29.
0.09	I/O	GPIO9, UART1_RX.		0.30	I/O	GPIO30.
0.10	I/O	GPIO10, UART1_TX.		0.28	I/O	GPIO28.

Specifikationer

Parametre	Beskrivelse
MCU	nRF52840
LoRa Chipset	SX1262
Hukommelse	1M ROM; 256KB SRAM
Bluetooth	Bluetooth 5, Bluetooth mesh, BLE.
Opbevaringstemperatur	-30~80℃
Driftstemperatur	-20~70℃
Driftsfugtighed	90% (ingen kondensering)
Strømforsyning	3~5.5V (USB), 3~4.2 (batteri)
Display modul	LH114T-IF03
Skærmstørrelse	1.14 tommer
Skærmopløsning	135RGB x 240

Aktivt område	22.7 mm(H) × 42.72(V) mm
Display farver	262K
Hardware ressource	USB 2.0, 2*RGB, 2*Button, 4*SPI, 2*TWI, 2*UART, 4*PWM, QPSI, I2S, PDM, QDEC Etc.
Interface	Type-C USB, 2*1.25 lithium battery connector, 2*1.25 solar panel connector, LoRa ANT (IPEX1.0), 8*1.25 GPS module connector, 2*13*2.54 stiftliste
Dimensioner	50.80 mm x 22.86 mm
Driftsstrøm	1A

Strømforbrug

Mode	Tilstand	Forbrug (Batteri@3.7V)
		470 MHz	868 MHz	915 MHz
LoRa_TX	5dBm		83mA	93mA
	10dBm		108mA	122mA
	15dBm		136mA	151mA
	20dBm		157mA	164mA
BT	UART	93mA
	Scan	132mA
Sove		11uA
Driftsstrøm		1A

LoRa RF-egenskaber

Sendeeffekt

470~510	21 ± 1
863~870	21 ± 1
902~928	21 ± 1

Modtagelse af følsomhed

 The following table gives the sensitivity level typically

Signalbåndbredde/[KHz]	Spredningsfaktor	Følsomhed/[dBm]
125	SF12	-135
125	SF10	-130
125	SF7	-124

Driftsfrekvenser
Mesh Node T114 supports LoRaWAN frequency channels and models corresponding table.

Område	Frekvens (MHz)	Model
EU433	433.175~434.665	HT-n5262-LF
CN470	470~510	HT-n5262-LF
IN868	865~867	HT-n5262-HF
EU868	863~870	HT-n5262-HF
US915	902~928	HT-n5262-HF
AU915	915~928	HT-n5262-HF
920 kr	920~923	HT-n5262-HF
AS923	920~925	HT-n5262-HF

Fysiske dimensioner

 

Ressource

Udvikle rammer og lib

• Heltec nRF52 framework og Lib

Anbefalingsserver

• Heltec LoRaWAN testserver baseret på TTS V3
• SnapEmu IoT-platform

Dokumenter

• Mesh Node T114 Manual Document

Skematisk diagram

• V1Skematisk diagram
• V2Skematisk diagram

Relateret ressource

• TFT-LCD datablad

Heltec kontaktoplysninger

• Heltec Automation Technology Co., Ltd
• https://heltec.org

Ofte stillede spørgsmål

Q: Can I use the Mesh Node T114 with other LPW networks?

• A: Yes, the Mesh Node T114 supports various LPW networks with operating frequencies between 863~928MHz.

Q: What is the power consumption of the Mesh Node T114 in deep sleep?

• A: The device consumes only 11 uA in deep sleep mode, ensuring low power usage.