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Found 15 results

  1. Most of time when we use WiFi, we only use our WiFi device as a "station"(STA) that mainly receive information sent from "access point" (AP). Ameba Microcontroller from Realtek can not only connect to WiFI as a station, but also broadcast its own signal and become an AP, here is how, In AP mode, Ameba can accept at most 3 station connections, and can be set to open mode or security mode (WPA2). Preparation Ameba x 1 Example In this example, we turn on the AP mode of Ameba and connect station to Ameba. Open the WiFi AP example, "File"
  2. Use Ameba As UDP Server When surfing on internet, most of us are using TCP as its reliable and secure, however, UDP could also shine in some other area where speed is more important than integrity, and here is how Realtek's Ameba RTL8722 WiFi+BLE microcontroller works with UDP, Preparation Ameba x 1 Example In this example, we connect Ameba to WiFi an
  3. E-ink display comes in very handy in cutting power consumption when not refreshing the screen, it becomes more power conserving when combined with ARM Cortex M33 microcontroller-- RTL8722 from Realtek. This microcontroller sports dual-band WiFI and BLE 5.0 withh max clock at 200MHz, which make it possible to parse long string of a URL and generate a QR code locally. In this demo, we will show how to generate QR code and display it on a E-ink display. https://youtu.be/KYI5WBmC6ac
  4. Many interesting projects are coded on Arduino IDE thus making it very easy to get a head start with project. Just like Realtek Ameba RTL8722, there are many interesting project worth trying out, like BLE, MQTT with TLS etc. However, once the project grows in length and complexity, it becomes super inconvenient with the lack of code completion, hinting and jumping to definition features that are commonly available on most popular code editors. However, there is actually a way to have all those features with only 3 steps, here is how, (Note: there are probably other ways of ac
  5. BLE -- WiFi  Config  Demo Video Realtek's RTL8722 microcontroller is a dual-core, dual-band WiFi and BLE 5.0 capable embedded platform suitable for Internet of Things application. For many non-professional developer, setting up WiFi AP information for WiFi microcontroller might be a hassle as there is no user interface to manually select the AP we want. However, RTL8722 has BLE 5.0 which give it an edge to pass WiFi information to the board prior to connecting to WiFi, making WiFi connection as easy as simply tapping few button on your mobile phone, here is h
  6. Lack of security consideration is always debated in DIY projects, but now with Ameba Arduino-- an ARM Cortex M3 based WiFi microcontroller, you can add fingerprint sensor to your personal DIY project and boost its security. Here is a demo Preparation Ameba x 1 AS606 fingerprint identification module x 1 Example In this example, a fingerprint identification module is used to store fingerprints and identify them. This module uses SYNOCHIP AS606 chip, which can store up to 1000 sets of fingerprints. The libraries we need are: https:
  7. One of the challenges of using IoT enabled MCU is the power consumption. However, on Ameba, you can keep the WiFi on while in sleep mode thus enabling power saving and connectivity. Here is a demo of how to achieve WiFi in sleep mode. Preparation Ameba x 1 DHT11/DHT22/DHT21 x 1 Example In deepsleep mode, the WiFi feature of Ameba is disabled. If you want to save power and keep the WiFi connection at the same time, please use the sleep API. Open "File" -> "Examples" -> "AmebaPowerSave" -> "SleepWithDHTUdpServ" Remember to set th
  8. Ameba RTL8195AM has onboard NFC tag and run on ARM Cortex-M3 core with WiFi, just nice to make use of all these 3 powerful tool to make an useful applicaiton. Many models of Android smart phone support NFC feature, and numerous of NFC applications are developed for inspection and modification of NFC Tag. In this example, we establish NFC connection between Ameba and a smartphone, and open a webpage on the smartphone via a NFC event. Preparation Ameba x 1 Smartphone with NFC feature x 1 Note: Make sure the onboard NFC antenna is safely connected to the module. Then open the exa
  9. With COVID-19 still wreaking havoc globally, causing thousands of deaths, millions hospitalized, any useful medical device is on high demand, especially household medical device like IR non-contact thermometer. Handheld thermometer usually is on high price point and is hard to come by these days, but the components needed to make thermometer are not that expensive, that give us the perfect reason to DIY one during this lockdown period. This ThermoGun project use Ameba Dev. board RTL8710AF from Realtek, which connects to an OLED display to show temperature data obtained from the MLX90615 IR
  10. Now that most people stay at home to avoid close contact with potential COVID-19 virus carrier, air quality becomes an important factor to people’s well-being, especially in tropical countries where using air-con is a must during the day, as prolonged use of air-con may do more bad than good to people’s respiration system thus weakening our immunity and make people more susceptible to virus infection. Here I am going to show you how to make a simple yet powerful air quality monitoring system using Realtek Ameba RTL8195AM development board and PM2.5 module, together with a TFT LCD display
  11. MQTT (Message Queuing Telemetry Transport) is a protocol proposed by IBM and Eurotech. IBM® Watson™ IoT Platform is, by the official definition, “A foundational cloud offering that can connect and control IoT sensors, appliances, homes, and industries. Built on IBM Cloud, Watson IoT Platform provides an extensive set of built-in and add-on tools. Use these tools to process IoT data with real-time and historical analytics, extract key performance indicators (KPIs) from your data, add “smarts” in the cloud for non-smart products, and securely connect your own apps and exist
  12. This project is the second one in the new IOT project series on Ameba RTL8195AM Dev. Board. The focus of this project is to demonstrates how easy it is for Ameba Wi-Fi Dev. board to communicate with our smart phone via MQTT protocol. Phone to microcontroller communication used to be very difficult as they use totally different hardware interface and phone get its data mainly through the network. Now with a Wi-Fi enabled microcontroller like Ameba RTL8195AM, communication with our phone becomes a bliss. Of course, in this project, only a mini hand-crafted win
  13. One of the most useful IoT applications is home security. Imagine a thief cutting your security camera wire while trying to break into your house. This won’t happen if your security system goes wireless and smart. This project demonstrates the capability of Realtek Ameba dev. board to conduct board-to-board communication via MQTT (FREE MQTT broker hosted at cloud.amebaiot.com). With this home security system, you will definitely be alarmed when your window/door is opened by the self-invited as the buzzer will make loud irritating noise while red LED flashes continuously
  14. Temperature and humidity are 2 of the most important factors affecting people’s comfort level in an enclosed space. The DHT humidity and temperature sensor can read the ambient temperature and humidity every 2-3 seconds, and then pass the data to Ameba who will forward them to the server using MQTT protocol. Whoever “subscribing” to the right topic gets the data almost instantaneously. Users can then adjust the aircon mode or temperature according to the readings received. An android phone was used as an MQTT client and the Ameba RTL8195 Dev. Board acted as another MQTT client communicati
  15. This is a simple IoT project based on the “mqtt basic” example that comes with the Arduino package when you install the RTL8195 on Arduino IDE. In this project, simple passive components are used to aid in demonstrating the power of bidirectional communication of MQTT protocol which is widely used in modern IoT applications for its advantages in speedy response and lightweight. In the video, an android tablet was used as a MQTT client and our Ameba RTL8195. Board acted as another MQTT client communicating with the android tablet. Both client have to connect to the same MQTT server before
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