* Estimated delivery times start from the date of shipment, excluding processing time.
* Actual delivery times may vary due to holidays, weather conditions, or customs delays.
Penghantaran standard percuma untuk pesanan melebihi $9.9
Polisi Pulangan
Pulangan akan diterima dalam tempoh 40 hari dari tarikh penerimaan barang. Barang yang diperibadikan tidak boleh dipulangkan atau ditukar. Barang yang dibeli dengan kad hadiah elektronik hanya boleh ditukar; bayaran balik tidak terpakai.
Hadiah Percuma
Selamat datang ke Roymall, laman web profesional anda untuk membeli hadiah gedung serbaneka premium. Kami sangat menghargai dan menghargai sokongan anda dan ingin menyatakan rasa terima kasih kami dengan menambah sentuhan tambahan keseronokan kepada pembelian anda. Apabila anda membeli-belah dengan kami, anda bukan sahaja menikmati produk berkualiti tinggi yang meningkatkan gaya hidup anda, tetapi anda juga akan menerima hadiah percuma eksklusif dengan setiap pesanan yang anda buat. Bersedia untuk menerokai koleksi kami dan mencari hadiah sempurna anda? Layari pilihan kami untuk barangan gedung serbaneka premium, buat pesanan anda dan nantikan kedatangan hadiah percuma anda bersama pembelian anda.
Polisi Penghantaran
Kami akan berusaha keras untuk menghantar barang kepada anda selepas menerima pesanan anda dan memastikan ia tiba dengan selamat. Butiran penghantaran akan disediakan dalam e-mel pengesahan anda.Dalam kebanyakan kes, pesanan diproses dalam masa 2 hari. Dalam keadaan khas, ia mungkin ditangguhkan seperti berikut: Apabila anda membuat pesanan pada hari Sabtu, Ahad atau hari cuti umum, ia akan ditangguhkan selama 2 hari.Biasanya, ia memerlukan 5-7 hari bekerja (Isnin hingga Jumaat) tanpa dipengaruhi oleh kelewatan penerbangan atau faktor persekitaran lain.Oleh kerana perkhidmatan penghantaran kami adalah global, masa penghantaran akan bergantung pada lokasi anda, jadi ia mungkin mengambil masa beberapa hari dan sila bersabar jika anda berada di daerah atau negara terpencil.
1. Polisi Pulangan dan Pertukaran
Kami hanya menerima barang yang dibeli di roymall.com. Jika anda membeli dari pengedar tempatan kami atau peruncit lain, anda tidak boleh memulangkannya kepada kami.Barang jualan akhir atau hadiah percuma tidak boleh dipulangkan.Untuk layak mendapat pulangan, barang anda mesti tidak digunakan dan dalam keadaan yang sama seperti yang anda terima. Ia juga mesti berada dalam pembungkusan asal.Selepas menerima arahan pulangan dari kami, sila bungkus barang yang dipulangkan dan hantar pakej anda ke pejabat pos tempatan atau perkhidmatan kurier lain. Kami akan memproses pulangan atau pertukaran barang anda dalam masa 3-5 hari bekerja selepas menerimanya. Bayaran balik akan diproses dan dikreditkan secara automatik ke kaedah pembayaran asal anda.Tiada pulangan atau pertukaran boleh diterima jika produk itu dihasilkan secara tersuai, termasuk saiz tersuai, warna tersuai atau cetakan tersuai.Perlukan lebih banyak bantuan? Hubungi kami. service@roymall.com atau Whatsapp: +447549870296
2. Polisi Bayaran Balik
Anda akan mendapat bayaran balik penuh atau kredit kedai 100% selepas kami menerima dan mengesahkan pakej yang dipulangkan. Bayaran balik akan diproses dan dikreditkan secara automatik ke kaedah pembayaran asal anda.Sila ambil perhatian bahawa kos penghantaran dan sebarang duti atau yuran tidak boleh dibayar balik. Kos penghantaran tambahan tidak boleh dibayar balik sebaik sahaja pakej telah dihantar. Anda bertanggungjawab untuk membayar yuran ini dan kami tidak boleh mengecualikan atau membayar baliknya, walaupun pesanan itu dipulangkan kepada kami.Selepas kami menerima dan mengesahkan barang yang dipulangkan, kami akan menghantar e-mel kepada anda untuk memberitahu anda bahawa kami telah menerima barang yang dipulangkan. Kami juga akan memberitahu anda tentang kelulusan atau penolakan bayaran balik anda.Jika anda mempunyai sebarang masalah dengan proses bayaran balik, sila hubungi kami. service@roymall.com atau Whatsapp: +447549870296
Specifications:
Size: Approx. 5.7x3x1cm/ 2.24x1.18x0.39"
Advantage:
1. Open-source
2. Interactive
3. Programmable
4. Low cost
5. Simple
6. Smart
Wi-Fi enabled
Compatible -like hardware IO
Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
Code compatible , but interactively in Lua script.
Nodejs style network API
Event-driven API for network applications, which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.
Greatly speed up your IOT application developing process.
Lowest cost WI-FI
It is a tiny board, based on ESP8266, integates GPIO, PWM, IIC, 1-Wire and ADC all in one board
Package Included:
1/3/5/10/20 x NodeMcu Lua CH340G ESP8266 WIFI Internet Module (optional)
Fantastic quality board for a fantastic price. I already had the CH340 USB driver installed for a different board so the NodeMCU worked right away with Arduino IDE. There are 3 main ways to use this:
- Program it using Lua, I believe the firmware it comes with supports this although I didn't try it.
- Write code for it in Arduino IDE (C++). This is the most flexible and highest-performance option, and gives you access to extensive libraries available in Arduino IDE with one button click. Environment is very similar to coding for Arduino.
- Use it as a "dumb" WiFi peripheral with AT commands sent over the serial port from another CPU (Hayes modem style). The firmware you need to load for this is fairly easily found on the web.
Note that it's wider than some other NodeMCU boards so it doesn't leave any connection points available beside it when on a standard project board, but this is easily solved using some non-stranded hookup wire connected underneath.
Fantastic quality board for a fantastic price. I already had the CH340 USB driver installed for a different board so the NodeMCU worked right away with Arduino IDE. There are 3 main ways to use this:
- Program it using Lua, I believe the firmware it comes with supports this although I didn't try it.
- Write code for it in Arduino IDE (C++). This is the most flexible and highest-performance option, and gives you access to extensive libraries available in Arduino IDE with one button click. Environment is very similar to coding for Arduino.
- Use it as a "dumb" WiFi peripheral with AT commands sent over the serial port from another CPU (Hayes modem style). The firmware you need to load for this is fairly easily found on the web.
Note that it's wider than some other NodeMCU boards so it doesn't leave any connection points available beside it when on a standard project board, but this is easily solved using some non-stranded hookup wire connected underneath.
Fantastic quality board for a fantastic price. I already had the CH340 USB driver installed for a different board so the NodeMCU worked right away with Arduino IDE. There are 3 main ways to use this:
- Program it using Lua, I believe the firmware it comes with supports this although I didn't try it.
- Write code for it in Arduino IDE (C++). This is the most flexible and highest-performance option, and gives you access to extensive libraries available in Arduino IDE with one button click. Environment is very similar to coding for Arduino.
- Use it as a "dumb" WiFi peripheral with AT commands sent over the serial port from another CPU (Hayes modem style). The firmware you need to load for this is fairly easily found on the web.
Note that it's wider than some other NodeMCU boards so it doesn't leave any connection points available beside it when on a standard project board, but this is easily solved using some non-stranded hookup wire connected underneath.
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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A part of the QA has been auto-translated.
0
Q:
Hello, is this NodeMcu ESP8266 ESP-12F or ESP-12E?
olá, está placa é o NodeMcu ESP8266 ESP-12F ou ESP-12E ?
Arduino ide doesn't automatically have this board. You have to add it.
You need to open Arduino IDE, choose File-->Preferences and then add this URL: ***** into the section that says: Additional Boards Manager (urls), save or OK, Then you have to go to Tools--> Boards Manager and add 8266 to the list of boards.
If you are not sure, try this step by step tutorial at *****
Arduino ide doesn't automatically have this board. You have to add it.
You need to open Arduino IDE, choose File-->Preferences and then add this URL: ***** into the section that says: Additional Boards Manager (urls), save or OK, Then you have to go to Tools--> Boards Manager and add 8266 to the list of boards.
If you are not sure, try this step by step tutorial at *****
Answered by davidcherubin on 11/11/2020Helpful (0)
0
Q:
Are the data pins 3.3v or 5v tolerant? Clearly the board accepts 5v, and there is a voltage regulator to drop the supplied voltage to 3.3v - my understanding is that the ESP8266 is only 3.3v tolerant - so if you supply 5v to VIN do the data pins only provide 3.3v? Can you interface 5v I2C modules to this device, or only 3.3v I2C modules?
Are the data pins 3.3v or 5v tolerant? Clearly the board accepts 5v, and there is a voltage regulator to drop the supplied voltage to 3.3v - my understanding is that the ESP8266 is only 3.3v tolerant - so if you supply 5v to VIN do the data pins only provide 3.3v? Can you interface 5v I2C modules to this device, or only 3.3v I2C modules?
Is this module compatible with the Geekcreit UNO R3 ?
https://www.banggood.com/Geekcreit-UNO-R3-Basic-Learning-Starter-Kits-Upgrade-Version-for-Arduino-Carton-Box-Packaging-p-970714.html
Hello, is this module compatible with the Geekcreit UNO R3 ? https://www.banggood.com/Geekcreit-UNO-R3-Basic-Learning-Starter-Kits-Upgrade-Version-for-Arduino-Carton-Box-Packaging-p-970714.html
I cannot boot nodemcu from Vin with voltage of 5 volts. The dev board only boot from USB. Can you please tell me how to power the unit without using the usb?
I cannot boot nodemcu from Vin with voltage of 5 volts. The dev board only boot from USB. Can you please tell me how to power the unit without using the usb?
Wasn't able to edit my previous question so here is the modified question:This is not the same as previous V3. Pin Rows are wider: 1.1in vs 0.9in and there was a LED on the board connected to D0 that doesn't seem to exist. The ESP8266 Wifi chip seems to run warmer than the previous V3 but is much cooler than the super hot V4. The builtin LED seems to be controlled by GPIO 02 (D4) and not GPIO 16 (D0). It has Ver 0.1 marked on the board near D0. If this is really a V3 devkit, how many different versions are available?
Wasn't able to edit my previous question so here is the modified question:This is not the same as previous V3. Pin Rows are wider: 1.1in vs 0.9in and there was a LED on the board connected to D0 that doesn't seem to exist. The ESP8266 Wifi chip seems to run warmer than the previous V3 but is much cooler than the super hot V4. The builtin LED seems to be controlled by GPIO 02 (D4) and not GPIO 16 (D0). It has Ver 0.1 marked on the board near D0. If this is really a V3 devkit, how many different versions are available?
You have to enter the ssid and password to your WiFi in your code. The device will then connect to the network you specified. Look at example code to see how it's done
You have to enter the ssid and password to your WiFi in your code. The device will then connect to the network you specified. Look at example code to see how it's done
Answered by BG335539323 on 10/03/2022Helpful (0)
0
Q:
This is not the same as previous V3. Pin Rows are wider: 1.1in vs 0.9in and there was a LED on the board connected to D4 that doesn't seem to exist. The ESP8266 Wifi chip seems to run warmer than the previous V3 but is much cooler than the super hot V4. Is this really a V3 devkit?
This is not the same as previous V3. Pin Rows are wider: 1.1in vs 0.9in and there was a LED on the board connected to D4 that doesn't seem to exist. The ESP8266 Wifi chip seems to run warmer than the previous V3 but is much cooler than the super hot V4. Is this really a V3 devkit?