About this project
Please scroll over the updates to reach the original start - Thank you very much BlueberryE Team
We added a new reward a breakout board for the fantastic Bosch BME280 humidity/pressure and temperature sensor
We finally defined a stretch goal if we reach 2750Euro we add for each board Uno335, Uno8266 and UnoEVS one 512kbit serial SRAM chip. If you pledge(d) more than 99Euro you get the BME280 breakout board for free.
our friends at activestatistics.io are working on an online platform targeted towards the Internet of Things (IoT). It spans from a simple datalogger to a sophisticated online data monitoring and analysis system. It is built as client/server system where the server is centrally provided by them and the client can be as small as our Uno8266 uploading data using the MQTT protocol.
We are partnering with them to be able to offer the backers of our current Kickstarter campaign a free account with the following features once they start (October/November this year):
- Database size 30MByte (you have your dedicated postgres database)
- Use all current functionalities plus MultiStream that is currently in development Data upload MQTT or HTTP with speed just limited by the system (no break put in)
- At least 3years valid
Thanks to all backers and supporter! Your support is great! We reached our goal in just one week!
And please - we count on your further support to our project by sharing to your network. We are on the way to prepare extraordinary stretched goals and share with you soon.
!!!!!!!! SPECIAL THANK YOU REWARDS !!!!!!!!
- Two days only Choose a UnoSWU and get a Uno335 and a Uno8266 FOR FREE!!!
- Four days only Choose a UnoSWU and get a Uno335 FOR FREE!!!
- Seven days only Choose a UnoSWU and get a Uno8266 FOR FREE!!!
UPDATE 15.06.15: We are featured at
UPDATE 12.06.15: Added additional material to UnoSWU scroll down to Use UnoSWU for PWM type control of high voltage tools
--- Original Start ---
When reading our name did you think just another copy of something famous? Hold on, yes we might have not been very creative with our name, but believe it, we are very creative with our hard and software. We just did not spend much more time with the name to have more time for development.
Were do we come from ...
Originating from different areas in the semiconductor industry we meet by chance the Arduino Uno and quickly recognized it is a great tool for a lot of projects. One thing we recognized in our work is: We frequently needed for newer sensors not 5V I/O but 3.3V and therefor a level shifter. Also SRAM is a bit tight when you want to store lots of sensor data. So we decided to make our own version to add this features. Of course the easy approach could have been to run simply from 3.3V but that would have been not perfect either, as there are also other sensors e. g. like a lot of gas sensors requiring 5V and in addition we would have lost speed. We call this board Uno335 to point to the levelshifters.
As we were working (and hearing of the cool ESP8266 with Lua firmware), we thought why always use a Raspberry for the Internet gateway lets plan a WiFi shield to cover not very complex stuff. No sooner said than done Niko our PCB designer started the first prototype.This board will be called Uno8266 as it is a shield with Uno footprint and a 8266 wifi module.
After having two boards we thought further and liked the idea to add a sensor board UnoEVS for environmental monitoring containing of temperature, humidity, pressure, various gases and a (optional) CO2 sensor. The gas sensors and especially the CO2 sensor will be optional as a good CO2 sensor is more expensive than all the rest of the boards we want to make.
Now we covered computing, connectivity and sensing so what is missing? Yes you are right! A actuator! We started to work on UnoSWU a SWitchable power plug with an Usb power supply. The great thing is that UnoSWU switches by providing a small voltage 3-30Vdc so you can use the the USB supply to power Uno335/Uno8266/UnoEVS and use a digital output to switch UnoSWU. Guess you got the idea ...
To us (and hopefully you as well) that will be helpful so we stood up funded a company and prepared this Kickstarter project. Again, given our mostly technical focus the names are not very creative, or do you think different? But now joking apart, lets look on the great specs.
The technical details
- The Uno335 is built based on an Arduino Uno R3 and inherits all the basic features that you love, including the completely same formfactor. Indeed you can use your Uno335 exactly as the original Arduino Uno by setting jumpers, but this is not the mode we have made the Uno335 for.
- Given the point above the Uno335 is programmed using the Arduino IDE. Download here.
- We added 512kbit serial SRAM to increase storage capacity. This memory will connect to the microcontroller using the SPI interface. A library will be provided to access the serial SRAM.
- I2C at 3.3V as many newer sensors just work based on 3.3V I/O we added the classical NXP circuit for levelshifting I2C at Pins SCL, SCA close to AREF. On A4, A5 still the regular 5V I2C interface is available, means you can use I2C parts at both voltage levels. Setting jumpers you can switch of the levelshifting.
- SPI at 3.3V we added a TI TXB0104 bidirectional levelshifter to the digital pins 10, 11, 12, 13 enabling the SPI interface at 3.3V. As the onboard serial SRAM is running on 3.3V as well, it uses the same levelshifter. To keep digital pin 10 (slave select) for external use we have a voltage divider on pin XXX that can act as slave select for the internal serial SRAM. Also these features can be enabled/disabled using jumpers.
- ESP8266-12 module wih PCB antenna
- Arduino Uno shield formfactor
- Programmable either using NodeMcu firmware or through the pluging for Arduino IDE.
- Can be programmed wirelessly
- SD card socket.
- Board is designed for dual use either as shield on top of a Uno335 or standalone powered by the ESP8266 MCU programmed in Lua. We will see if it works on top of Arduino standard pinout as well.
- Voltage converter to 3.3V LM3671 (buck converter 1A output)
- 74LVC1T45 (Levelshifter for RxTx Uno335) Interface: UART
- ATmega328 running at 3.3V programable using the Arduino IDE
- BME280 (pressure, temp, humidity) connected with I2C
- LTR303ALS01 (ambient light sensor) connected with I2C
- ML8511 (UV light sensor) analog out connect to ATmega328 ADC
- TSSP58038 für IR remote control (IR Receiver)
- VSMB10940 für IR remote control (IR Sender)
- Supply voltage 5V from Arduino Uno335 V
- voltage converter to 3.3V mit LP2985
- 4 connectors (2x I2C, 1x analog, 1x digital) to Seeedstudio Grove, this way you can add more than 100 additional sensors and other useful things.
- CO2 (NDIR near infraread absorption based) sensor optional
We consider the CO2 sensor very important as this gas has no color and does not smell and even at only slightly higher concentrations (>600ppm compared to the typical 350-450ppm) you start to feel not perfect anymore. To tak action you first need to kown the CO2 level and here the EE893 sensor can be mounted on the prepared UnoEVS comes in.
- E+E dual wavelength NDIR CO2 working principle
- Measuring range up to 10,000ppm
- Auto-calibration for excellent long term stability
- Temperature compensation
- Highly insensitive to pollution
- Very low current consumption down to 60 μA
- Digital output
- Very small size
- Comes from Austria.
You can find more info here.The only reason why we have made it optional is, is it very expensive compared to the reast of the UnoEVS (roughly about 3 times the price of a UnoEVS). You can think of intersting projects combining especially the UnoSWU to do something against high CO2 level (e. g. turn fresh air supply on).
- Connector system: safety plug (CEE 714) or rubber connector plug
- The current switching status is indicated by a green LED Load and control circuit have a safe electrical isolation over an Optotriac
- Protection: IP20, only for dry rooms #
- Load Switches = relay: very robust against possible voltage stress peaks and problematic 230V consumers (with highly inductive or capacitive load shares, high inrush currents, etc.)
- Operating voltage: 230V ~, 50Hz (optional 115V ~, 50Hz)
- Maximum switching capacity: resistive loads like light bulbs or heaters: 2000W (8.7A) inductive loads such as motors, transformers, etc.: 2000VA (8.7A)
- Control voltage: 3VDC ... 30VDC
- Control current: 3mA ... 9mA
USB Power Supply
- Femal USB Type A connector
- 500mA @ 5V minimal target
Working with system voltage is not our core competency so we are partnerning with an engineering company in Germany to develop UnoSWU, below you see a picture of a similar product they already made.
Some things you can make
In the following we show you a few things you can make, but for sure we are sure you will have better ideas and we would love to add your greates proposals here too, so please tell us:
- Use Uno335 to interface with sensors just speaking 3.3V like BMP180 or BME280
- Use the onboard SRAM of Uno335 to stor measurment data until wifi (Uno8266) becomes available again.
- Use UnoXXX to control moisture level for our plants Uno335 calculate when to water, UnoEVS sense humidity, moisture level (through a attached Grove System sensor), UV intensity and ambient light. Uno8266 sends data to the cloud (Thingsspeak etc.) and finally UnoSWU can control pumps, humidity or/and a roller shutter
- we want to add you suggestions ...
Use UnoSWU for PWM type control of high voltage tools
The following picture shows the ingredients of UnoSWU (switchable plug plus USB powersupply) in action to control a ventilator
The duty cycle of the ventilator was low earlier (26°C) and is now much higher (almost 30°C - today it is hot in Bavaria).
In the following you see two videos and you can see and hear (as the relay switches) the increase duty cycle.
Where we are now (and what is still todo)
What we have done so far
- We have designed the Uno335, manufactured prototypes and tested these thoroughly.
- We have finished the designs for the other boards and sent them for prototype manufacturing.
- We built lots of test circuits on bread and breakout boards to start software development to see the hardware in action and polish the design. Most of the software we will later publish on our website.
- The partner for making the UnoSWU has made similar products and is very confident that the specs are easily doable.
- All major functionalities are proven.
What we still need to do
- The Uno335 is fixed from feature point of view, here we are just continue to test and fix problems for the preproduction design.
- For the other three boards prototypes are on the way, but features are not totally froozen (see the specs section). Here we need to freeze the features soon (YOUR COMMENTS ARE VERY WELCOME) to order the final prototypes
- Continue testing to makeeverything massproduction ready.
- Generate demo code to give you a good basis to start from.
- Polish our website blueberrye.io
You probably recognized already that we are not very great in making graphics ... so please refer to the relevant section. You find general topics in the following enumeration:
- All reward levels are without custom duties and taxes - they are up to you.
- In case you want to get more pieces of a reward or different rewards just pledge the right amount, we will do a survey at the end to get an understanding what anybody has pledged for.
- We will basically ship from China
- For German backers we offer the possibility to ship faster from Munich, if you want to choose this please increase your pledge by 19% to cover Einfuhrumsatzsteuer.
as we are building on open source hard and software also Uno335, Uno8266 and UnoEVS will become opensource as much as possible. UnoSWU containes lot of partnerknowledge so we cannot make it opensource but we will publish what is possible.
Help us and spread the word
If you like Uno355 and friends please spread the word directly or on social media (another are for improvement for us)
Risks and challenges
Based on the fact that we confirmed all key functionalities of our hardware and software we are confident that the technical risk of the project is low.
But as with all hardware products, there could be delays or issues with the supply chain, manufacturing, and/or shipping/logistics. As we have thoroughly planned the supply chain, these risks should be minimal. Though not all risks can be predicted and we promise full transparency in case of issues.
We further promise you to do our very best to deliver the best product within the promised delivery dates.Learn about accountability on Kickstarter
Support this project
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