Android Things | 1 min | 2103
androidandroid studiobluetoothcc2650sensor tagtexas instruments
I've created a new repository for the Texas Instrument SensorTag CC2650. I updated the open source TI repository, which can be found here.
Due to licensing restrictions (I do not know which ones) Texas Instruments was no longer able to keep the open source code in sync with the SensorTag application in Google Play. That means, the new version in Google Play has more features than this one. But this is open source, and can be modified and extended! I am planning to collect the sensor data and publish on a Google Cloud IoT PubSub topic.
The new code can be found here:
Android Things | 1 min | 612
android thingsdhcpnrf24l01raspberry pisensor mesh
I've recently updated the
nRF24Thingsproject. I introduced some changes to the database main table (
sensors) and to the handler class
DatabaseHandler. Additionally, I added a second table for the payloads (
payload). The two tables are related using the foreign key
nodeID. I added some search options for the payloads: search by payloadID, nodeID etc.
The main idea of this project is to measure the humidity, temperature, air quality etc. of a room with multiple sensors (may be using the PiCoBo's) inside and outside of it, and the doors and window...
Android Things | 3 min | 1324
android thingsdehumidifierdh11nrf24l01pcb designpicoboraspberry pismart sensor
I had some humidity problems in the basement and I thought I can buy a dehumidifier. I bought this one on banggood Dehumidifier 500ml. I knew they are not good enough, but I wanted to try.
This type of dehumidifier uses a peltier element to cool an alumium disipator (peltier cool side), which condenses the humidity. The condensed humidity drips into a water tank until it is full. Then, a switch is triggered and the system stops. The peltier hot side has a bigger disipator and together with a fan disipate the generated heat.
Code: https://goo.gl/CPGcYK Eagle: https://goo.gl/...
Android Things | 1 min | 599
android thingsdhcpnrf24l01raspberry pisensor meshui
I've recently updated the code for the communication between the raspberry pi v3 and the rf24l01+ module using android things (0.)4.1.
You need the following things:
nRF24Things: https://goo.gl/SNnhxq Android Things (0.) 4.1
You can find more info about the project on https://goo.gl/XsRJtI .
MicroPython | 1 min | 2847
As soon as I saw the WS2812B led strip, I thought: doing a vu-meter with these LEDs would be a nice thing!.
I was looking for economical MEMS microphones with board (I didn't want to solder a board). I found two options: SPH0645LM4H and SPW2430.
The SPH0645LM4H uses an I2S interface and the SPW2430 has an analog output. The second board (SPW2430) has two outputs: AC pin which has a capacitor in series to eliminate the DC output of the IC, and the output of the IC (DC pin).
I bought the MEMS mics from exp-tech, here some links (from adapfruit too):
WiPy 2.0 x...
MicroPython | 1 min | 3729
I had two busy months, I've been writting my PhD-Thesis, and another publication and yeap... sorry! I forgot to update the blog!
Three weeks ago, I received a Ublox NEO-M8N GPS and I tested it with the code that I had. I said it should work, but as you know it always needs some modifications! The NEO-M8N supports GLONASS and GPS, so the $GP changes to $GN, e.g. $GPGGA (GPS) > $GNGGA (GPS+GLONASS).
The following changes were added:
# lines 604-606: if self.gps_segments[2:] in self.supported_sentences: # parse the Sentence Based on the message...
MicroPython | 2 min | 4438
Hi again!... First of all:
I've just uploaded some code for the Wipy 2.0. I wanted to write some python code. That was why I took the Wipy 2.0 and programmed something like a weather report box. In this project the Wipy 2.0 reads the GPS coordinates via UART, then makes a web get request using the API of openweathermap, and after that the results are displayed on a LCD.
If you like this, please leave a comment, share and/or like! It would be very much appreciated!
Things used in this project
Wipy 2.0 x 1 Ublox NEO-6...
Android Things | 6 min | 2171
android studioandroid thingsdhcpnrf24l01raspberry pisensor meshui
I've just uploaded the Java codes for the
rf24Meshthat work with Android Things. This time I didn't write a library because I thought it was better to upload an Android project that can be opened with Android Studio (>2.2.3) and directly started on the Raspberry Pi. I think this can also work with NXP Pico i.MX6UL and Intel® Edison with minor modifications (especially in the
In this post you will find some explanations about Android Things (installing, connecting, debugging, speed, etc.), the wiring of the complete 'thing' , the Java code, the mod...
I've just updated the website style! I was using theme-brick (Pagekit) without any modification, but I added some today!
I hope you find it cool! Leave a comment and tell me what you think about it! Stay tuned, I am loading some new codes!
PCB/Board designs | 2 min | 2852
android thingsnrf24raspberry pisensors
Out with the old, in with the new: may you be happy the whole year through!!!
Happy New Year!
This week has been a very busy one for me. But 2017 starts, and I have some new codes to publish!
How I start? Ok, I've been working (may be playing) with Android Things using a Raspberry Pi v3, and I've been rewriting some of my libraries!.
First, I thought, let's try SWIG and wrap the C/C++ codes to use them with Java. But, then I realized, that I needed a wrapper in wrapper, which I think is not possible (I am not an expert with these things, so if I am wrong, please leave a comment, I would appr...
MicroPython | 1 min | 1507
I wish you a Merry Christmas!!! and to celebrate this evening I've just uploaded a new repository for the Wipy 2.0. Some Christmas lights using the WS2812B!
Things used in this project
Wipy 2.0 x 1 WS2812B LED strip x 1
boot.py: add your ssid, wlan password, and configure the ip address. You need this file if you want to connect the Wipy 2.0 to your router, otherwise you can avoid copying it and the Wipy remains as an wlan access point.
main.py: you find some options here. The most important option is
ledNumber. Set this value correctly.
PCB/Board designs | 2 min | 1145
I am back again! After almost a-two whole week(s) of code cleaning and updating I've just uploaded two 'new' libraries:
These libraries are an extension to the great nrf24 libraries provided by TMRh20 and allow to connect the nRF24L01+ to the following TI-Launchpads:
In the following days I am updating some example codes for CCS (Code Composer Studio) and EAGLE files.
I am calling this project DIVA (#ProjectDIVA), a...
PCB/Board designs | 2 min | 1584
launchpadphotosstreaming videotexas instrumentsTM4C1294XLweb server
I have just uploaded two repositories related to the EK-TM4C1294XL!
Take photos over serial interface: https://goo.gl/8PlS7y
Stream (slow) video via webserver: https://goo.gl/gQDFTO
Connect the OmniVision ov7670 -old but everywhere- (version with FIFO AL422B) to the LaunchPad Tiva™ C Series EK-TM4C1294XL and take photos over serial interface, or use the http webserver to get a (slow) video streaming.
Things used in this project
EK-TM4C1294X x 1 ov7670 with AL422B x 1 CP2102 USB to TTL x 1 CP2102 USB to TTL Launc...
General | 2 min | 927
blogpagekitprogramming languagesstarting this thingwebsite
I work at the Institute of Mechatronic Systems (Leibniz University Hannover) where I am finishing my PhD thesis on the field of identification and control (working title “Online Parameter and Covar...