A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:
Proof of Concept
Explorations that test ideas and functionality.
Demonstrates the functionality of the final product, but looks different.
Looks like the final product, but is not functional.
Appearance and function match the final product, but is made with different manufacturing methods.
Appearance, function, and manufacturing methods match the final product.
Ledunia is a wifi-enabled development board, including a full TCP/IP stack,
which you can use for rapid prototyping any IoT application you can think of.
Ledunia is based on the proven ESP8266 microchip technology, but with a twist.
The chip is just the beginning: we’ve added pin headers, memory, neopixel LEDs and a standard USB plug, and then enclosed the board in a durable plastic case, so it’s easy to take your ledunia projects with you.
You can take your ledunia to class to show off a project, or to a customer to demonstrate your technology, without worrying about damaging the board.
Ledunia is comparable to the Arduino platform and it’s fully compatible with the Arduino IDE, so you can take advantage of existing Arduino tools, sketches and projects as the basis for your new ideas.
However, ledunia is NOT just another nodeMCU clone. It executes much faster than Arduino and has many more features and resources on board, giving you a wider range of development possibilities.
Our funding goal of $18500 is to cover the cost of manufacturing the ledunia boards, including all the on-board hardware (memory, pin headers, etc).
Once manufacturing for the PCBs is covered, our stretch goal is to manufacture the custom plastic enclosure.
We've made this a stretch goal rather than including it in the basic funding goal for two main reasons:
We're not sure how many of you would like an enclosure, and we want to make sure you get your ledunia boards, even without an enclosure; and
Manufacturing the enclosure has relatively high upfront costs for creating the injection mould, and we insist on high-quality, highly-diffusive plastic granulate, so that the end result shows off the neopixels to their full advantage
Ledunia’s grid dimensions are 2.54 mm, so it’s fully compatible with any standard bread board. And we used female pin headers for a good reason: they don’t bend, and you can attach your IoT sensors directly to ledunia without needing to use a breadboard.
Ledunia was designed to be super easy to use – simply plug it into your computer using the USB port, add your favorite IoT components, like sensors and displays and you’re ready to go!
It’s simple to complement your existing Arduino projects, or any development board that has I/O pins available.
Simply download an Arduino sketch. The Arduino IDE already includes countless libraries for nearly every IoT sensor on the market, so you can create IoT applications customized to your individual requirements.
Upload your data to your favourite IoT cloud service or to a monitoring tool like PRTG.
Ledunia has WiFi on board to provide 1-wire resources, GPIO, PWM, ADC, i2c, SPI and more at your fingertips, combined with a stable industrial-quality USB-TTL-Serial plug.
We’ve engineered ledunia for mobile devices and wearables. The power-saving architecture features three modes of operation: active mode, sleep mode and deep sleep mode, allowing battery-powered designs to run much longer.
Let’s start with the 32 Mb Memory: We’ve added a Winbond 256M-bit flash memory, which means you now have an incredible 32Mb serial flash memory for your projects.
With this 32 Mb flash memory you can implement much larger and more complex programs than with comparable boards.
To get those apps onto your board, you can use the Arduino IDE to upload your data to ledunia.
And uploading has never been easier.
We have completely eliminated the push buttons for the upload or reset process. The upload is handled automatically by the software, which guarantees maximum freedom, especially for the development of enclosures for your ledunia projects.
To make updating even easier, ledunia is ready for OTA – the Over the Air update.
As we mentioned earlier, we included four ultra-bright multicolor WS2812b LEDs, which you may know as neopixels. Each LED is individually addressable since the driver chip is inside the LED.
These LEDs are 'chainable' – simply connect Ledunia's output to the input of an LED stripe.
But what can you do if your WiFi signal is weak? You can easily extend your WiFi range by adding an external antenna. A U.FL, Ultra Miniature Coaxial Connector Receptacle, is already on board.
When the WiFi stack is enabled, you still have about 80% of the processing power available for your programming and development.
Ledunia is designed as a development board for rapid prototyping. That’s why we chose a USB plug rather than a micro USB port. You can connect directly to your PC or Mac without having to use a separate cable.
The USB plug is covered by Microsoft's digital signature authentication.
All system LEDs you already know from Arduino or NodeMCU are available on the ledunia board. Some of these LEDs we deliberately turned off. This was partly for aesthetic reasons but mostly to save power – especially for the deep sleep mode.
If you want to activate the LEDs, no problem, we’ve added soldering bridges on the board.
All parts of ledunia are open-source and open-source-hardware.
Ledunia is already a fully functional prototype and now we need your support to bring ledunia to the market.
Please check out the prototype gallery above for more details!
We’ve been working on IoT and IIoT for over 5 years now. The ledunia that you see in the pictures above is a real, working prototype.
With your support, we can bring ledunia to the market worldwide. While we're close to entering production, your contribution will help fund:
Large component order
Espressif ESP8266 SoC
Integrated TCP/IP protocol stack
Integrated low power 32-bit CPU (80-160 Mhz) processor
802.11 b/g/n Wi-Fi
+19.5dBm output power in 802.11b mode
Direct (P2P), soft-AP
On-board FTDI USB-to-Serial
UART, SPI, I2C, I2S, ADC, PWM. 20 GPIO pins
Max 12mA per I/O pin
Deep sleep 10uA
72 x 25 x 7.9 mm (with USB plug)
55.5 x 25 x 7.9 mm (PCB only)
Operating temperature: -40 to 85 degrees Celsius
All module pins broken out (female pinheader)
Integrated TR switch, balun, LNA, power amplifier and matching network
Integrated PLLs, regulators, DCXO and power management units
Internal WiFi antenna
U.FL WiFi antenna connector
4x WS2812 RGB LED
Standard 1-year manufacturers’ warranty.
Enterprise grade means CE and FCC as a minimum. Network certification is a given for long-lifecycle IoT solutions to ensure stable connectivity.
All our partners
A special thanks to the ledunia team!
Everyone who helped us with our campaign
Last but not least, our supporters and backers
Any trademarks or trade names mentioned are the property of their respective owners.
The prototype boards work well and conform to the specifications and reference designs of the components used. We have secured quotations for production and are confident that we can produce the boards and other rewards at the right price.
When manufacturing, there are always concerns around the production and logistic time frame. However, we have the experience to minimize any controllable hiccups and deal with uncontrollable circumstances.
We have identified world class German manufacturing facilities which have the ability to produce quality products for a reasonable price while meeting all manufacturing requirements.
Computerized devices with radio interfaces, such as ledunia, require product testing and regulatory approvals. Several competent companies which perform testing for certification have been identified and we are working to negotiate a satisfactory contract.