Hi Juan/Ytai, Can I just use the HX711 weight sensor + Driver HX711 24bit gain amplifier ADC Module and connect it to the analog input pin of IOIO, then read the value?
Or I really need a "custom firmware" as you say? Please advise. Thanks. On Tuesday, March 8, 2016 at 10:41:25 AM UTC+7, Juan Carlos Contador wrote: > > why: I had the same problem that appears in this publication ( > https://groups.google.com/forum/#!topic/ioio-users/t9xaSr8yZNI ). I > finally decided by the most elegant solution. > > How: First of all, it seemed I was too exaggerated change (or extend) IOIO > much of the code and java interfaces, only to support a particular sensor. > I found that the port used for logging was a good choice to output sensor > data. Then use this port for output, and this same signal is forwarded to > the next pin (put a jumper). On the Java side, I open the latter for UART > reading. > The data are collected from the sensor by a function located in main.c, > and sent along with the model of the connected load cell, which then in the > Java side will be used to configure and calibrate the scale automatically. > Something I forgot ... on the wish list for future versions I think we > need a memory area for storing certain data like cookies (Java interface: > putInt (name, value), putString (name, value), etc. ... And then ... > support for WiFi adapters. > > greetings and thanks for your excellent work. > > (Sorry if something is not understood quite right, I use Google translator) > > El lunes, 7 de marzo de 2016, 13:36:08 (UTC-3), Ytai escribió: >> >> That's awesome! Thanks for sharing. Nice job on the GUI too! >> Care to say a few words about your custom firmware, why and how? >> >> On Thu, Mar 3, 2016 at 10:12 PM, Juan Carlos Contador <[email protected]> >> wrote: >> >>> hi, I mean that the IOIO board is the best way to make new accessories >>> for android. >>> >>> I finally managed to connect a weight sensor ( hx711 ) with the IOIO , >>> using a custom firmware , it reads the sensor only when a device is >>> connected to this. >>> >>> On the Java side , I made an application using IOIOLib and WebView . >>> This app exposes JavaScript interfaces, which are used by small mini -apps >>> that emulate different weight indicators used more commonly. These mini >>> -apps can be created on a website and be available immediately for testing . >>> >>> https://www.youtube.com/watch?v=i4qJ2Rk2740 >>> >>> https://www.youtube.com/watch?v=Cawv5VZGuDY >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "ioio-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/ioio-users. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
