Cov khoom rov qab yuav txais tos hauv 40 hnub thaum yog hnub tau txais cov khoom. Cov khoom tsim tsis tuaj yeem rov qab lossis hloov. Cov khoom yuav nrog e-gift card yog hloov xwb; rov qab tsis raug.
Tsoom dawb
Zoo siab txais tos rau Roymall, koj lub professional website yuav premium department store tsoom. Peb ntsuas thiab txaus siab rau koj kev pab, thiab peb xav qhia peb lub siab ua tsaug los ntawm ntxiv qhov zoo nkauj rau koj cov kev yuav khoom. Thaum koj yuav khoom nrog peb, koj tsis tas yuav tau cov khoom zoo thiab ua kom koj lub neej zoo dua, tab sis koj yuav tau txais ib qho tsoom dawb nrog txhua qhov kev yuav khoom. Npaj los nrhiav peb cov khoom thiab nrhiav koj cov tsoom zoo? Nrhiav peb cov khoom xaiv, sau koj qhov kev yuav khoom, thiab nqa koj lub siab rau kev zoo siab thaum koj cov tsoom dawb tuaj nrog koj cov khoom.
Kev soj ntsuam
Peb yuav ua haujlwm hard kom soj ntsuam cov khoom rau koj tom qab tau txais koj cov kev yuav khoom thiab ua kom lawv mus kom zoo. Cov lus qhia soj ntsuam yuav muab rau koj hauv koj daim email confirmation.Hauv feem ntau, cov kev yuav khoom yuav raug kho hauv 2 hnub.Hauv cov xwm txheej tshwj xeeb, nws yuav raug delay raws li no: Thaum koj sau ib qhov kev yuav khoom hnub Saturday, Sunday lossis hnub so, nws yuav raug delay 2 hnub..Feem ntau, nws yuav tsum 5-7 hnub ua haujlwm (Monday mus Friday) tsis raug cuam tshuam los ntawm kev delay lossis lwm yam environmental factors..Vim peb cov kev soj ntsuam yog worldwide yog li cov sij hawm soj ntsuam yuav sib raug rau koj qhov chaw uas yog li nws yuav tsum tau ob peb zaug thiab thov ua siab ntev yog koj nyob hauv zej zog lossis lub teb chaws.
1. Kev rov qab & hloov chaw
Peb tsuas yog txais cov khoom yuav los ntawm roymall.com. Yog tias koj yuav los ntawm peb cov khoom lag luam lossis lwm cov khoom yuav, koj tsis tuaj yeem rov qab lawv rau peb.Cov khoom kawg lossis cov tsoom dawb tsis txais tos rau kev rov qab.Kom muaj peev xwm rov qab, koj cov khoom yuav tsis tau siv thiab nyob rau hauv tib yam li koj tau txais lawv. Nws yuav tsum nyob rau hauv cov pob txha original.Tom qab tau txais cov lus qhia rov qab los ntawm peb, thov pob txha koj cov khoom rov qab thiab coj koj cov pob txha mus rau lub chaw hauv pob lossis lwm tus neeg soj ntsuam. Peb yuav kho koj cov khoom rov qab lossis hloov chaw hauv 3-5 hnub ua haujlwm tom qab peb tau txais nws. Kev them rov qab yuav raug kho thiab automatically them rau koj qhov kev them nyiaj ua ntej.Tsis muaj kev rov qab lossis hloov chaw yuav raug txais yog tias cov khoom yog tsim custom, suav nrog custom ntev, custom color, lossis custom sau ntawv.Xav tau ntau ntxiv pab, thov hu rau peb. service@roymall.com lossis Whatsapp: +447549870296
2.Kev them rov qab
Koj yuav tau txais tag nrho cov nyiaj rov qab lossis 100% store credit tom qab peb tau txais koj cov khoom rov qab thiab tshawb xyuas nws. Kev them rov qab yuav raug kho thiab automatically them rau koj qhov kev them nyiaj ua ntej.Thov nco ntsoov tias cov nyiaj soj ntsuam thiab cov nyiaj fees tsis yog rov qab. Cov nyiaj soj ntsuam ntxiv tsis yog rov qab thaum cov pob txha tau soj ntsuam lawm. Koj yog tus neeg ua haujlwm rau kev them cov fees no thiab peb tsis tuaj yeem tso tseg lossis rov qab lawv, txawm tias koj cov kev yuav khoom rov qab rau peb.Thaum peb tau txais thiab paub tseeb tias koj cov khoom rov qab, peb yuav xa koj ib daim email kom paub tias peb tau txais koj cov khoom rov qab. Peb yuav qhia koj txog kev txais lossis tsis txais koj cov nyiaj rov qab.Yog tias koj muaj teeb meem nrog kev them rov qab, thov hu rau peb. service@roymall.com lossis Whatsapp: +447549870296
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Heltec LoRa Node Products Difference Table:
u201cHeltec LoRainchs product family already included follow options:
LoRa spread spectrum communication (node);
Battery powered;
Good RF circuit design and impedance matching.
Product
Type①
MCU
FLASH
Battery
Battery Detect
Vext③
Low Poweru2463
Display
WiFi LoRa 32
Dev-Board
ESP32
4MB
Lithium②
x
x
x
OLED (128x64)
WiFi LoRa 32(V2)
Dev-Board
ESP32
8MB
Lithium②
u221a
u221a
800uA
OLED (128x64)
(This item)
Wireless Stick
Dev-Board
ESP32
8MB
Lithium②
u221a
u221a
800uA
OLED (64x32)
Wireless Stick Lite
Dev-Board
ESP32-PICO
4MB
Lithium②
u221a
u221a
35uA
x
Wireless Shell
Module
ESP32-PICO
4MB
–
u221a
x
10uA
x
LoRa Kit 151
Dev-Board
STM32L151CBU6
128kB
Lithium
x
x
7uA
x
LoRa Node 151
Dev-Board
STM32L151CCU6
256kB
1/2 AA Lithium chlorine sulfite battery
u221a
u221a
1.8uA
x
Turtle Board
Dev-Board
STM32L432KC
256kB
AAA x 2
u221a
u221a
5uA
x
Notes:
① – Type:
Dev-Board – Can be used directly;
Module – Only core function, need to cooperate with external PCB or circuit.
② – Lithium: All lithium battery socket for Heltec boards is SH1.25-2;
③ – Vext: 3.3V(500mA) output, for external devices (e.g. sensors) power supply, in deep sleep mode, Vext can be shut down via software;
u2463 – Low Power: Products' low power design, of Whole Circuit, the measured data are the current of the system during deep sleep.
Feature: -WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation(TM), it's a highly integrated product based on ESP32 + SX127x, it has Wi-Fi, BLE, LoRa functions, also Li-Po battery management system, 0.96u2033 OLED are also included. It's the best choice for smart cities, smart farms, smart home, and IoT makers.
-Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures;
-Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching);
-Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use;
-Onboard 0.96-inch 128*64 dot matrix OLED display, which can be used to display debugging information, battery power, and other information;
-Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
-Support the ARDUIN0 development environment;
-We provide ESP32 + LoRaWAN protocol ARDUIN0 library, this is a standard LoRaWAN protocol that can communicate with any LoRa gateway running the LoRaWAN protocol. In order to make this code running, a unique license is needed. it can be found on this page;
-With good RF circuit design and basic low-power design (sleep current ≤ 800uA), it is convenient for IoT application vendors to quickly verify solution and deploy applications.