Netduino home hardware projects downloads community

Jump to content


The Netduino forums have been replaced by new forums at community.wildernesslabs.co. This site has been preserved for archival purposes only and the ability to make new accounts or posts has been turned off.

NooM

Member Since 30 Aug 2012
Offline Last Active Aug 16 2014 12:09 PM
-----

#40439 NetDuino mini locked

Posted by NooM on 29 November 2012 - 07:12 PM

put 3.3v to the gold erase pad, its very small.

that near pin12, and watch out you dont hit the pin.
mini pinout

you than have to reflash tinybooterdecompressor via rs232 (not uart!).
be sure to flash the right one. if you wanna use rs232 for programming use the rs232 version, else the uart one.


mini firmware and short description how to flash it


edit: youd could also boot it in bootloader mode, it wount execute your app than, and you can delete it per mfdeploy (the erase button near ping)


#39338 New to this : Trouble with AnalogInput with Firmware v4.2.0.1

Posted by NooM on 14 November 2012 - 02:31 PM

you should do pot.Read() * 3.3f to get the voltage you put in. also do Debug.Print("analog value: " + pot.Read * 3.3f); so you know wich value it is. also you are using microsofts analog input class, so you dont use the secretlabs one. rawread returns a value between 0 and 1024 iirc. your "hack around" is the only way. the defines are analogchannels, pwmchannels and normal pins. intellisense will also show you cpu.pins wich you cant use easly, cos they are routed different.


#38470 I2C & temperature sensor TCN75A

Posted by NooM on 03 November 2012 - 11:14 PM

did you use pull-up resistors on your wiring? also: you send 0x00, than read 2 bytes. use my class in attachment. do something like: Write(new byte[] { 0x00 } ); than in your loop: byte[] tmp = new byte[2]; Read(tmp); than convert the data to something readable (it return 12 bit, split to 2x8 bit (2 bytes..). also you can only gather data once every 240msec, so sleep this ammount. //edit: this depends on your selected resolution! 9bit is 32msec your device address seems to be ok (when you connected all 3 address pins to gnd!)

Attached Files




#38174 Nokia 3110/LCD4884 JoyStick

Posted by NooM on 29 October 2012 - 12:19 PM

i suggest not putting 5v into the 3.3v analog pins.


#37717 Flashing 4.2 failed

Posted by NooM on 21 October 2012 - 04:37 PM

ah ok. sorry i have no more ideas than. it should work. //edit: i looked at your picture more closly: it doesent look like hooked up correctly. first: pin1/2 is rt/tx (netduino side) you dont need dtr. but you have to connect gnd from the cable to netduinos gnd.




home    hardware    projects    downloads    community    where to buy    contact Copyright © 2016 Wilderness Labs Inc.  |  Legal   |   CC BY-SA
This webpage is licensed under a Creative Commons Attribution-ShareAlike License.