qui pourrai m’indiquer la marche a suivre pour arduino mega.
arduino mega + ramps 1.4 >>>>> televersement de quel librairie ?
je possède estlcam version ramps1.4 deux X, deux Y, un Z ?
Hello Mr. Christian,
with reference to your request to list down the free Pins I enclose a Rar file of screenshots of pins and PCB layout on Ramps 1.4 PCB. Mega+Ramps 1.4 Eagle Cad sch and brd files from Wiki. Listed are the ones NOT in use by most Displays on Aux4 and Aux3 !!
I hope this helps!
Mike
Rar file here previous was to large…
Ramps14MegaFreePins.rar (2.12 MB)
Hello at all
first, im from switzerland and my english is pretty bad 
i have a problem with getting estlcam and ramps to work
when i try to upload marlin from vicious1 on my all brand new iduino mega with a i believe its a ultimachine ramps 1.4 board and 5 (chinese) drv8825 drivers i have no problems
but when i try to upload the firmware with estlcam i get the message in german “aktiviere bootloader: fehlgeschlagen” wich in english probally means, activate bootloader: Failure
i removed the ramps shield and tried it again, everything works perfect until i connenct the shield, then i get a message from estlcam that it is not getting an answer from the arduino
does anyone here has the same problem or probally has a solution to me?
thank you very much
Hi Christoph,
I think the Iduino will not work - Estelcam V9 works only with Arduino Uno, Nano / (Mega as Beta-experimental) for now. Bootloader
fehlgeschlagen means:
abortive {adj}
failed {adj} {past-p}
backfired {adj} {past-p}
aborted {adj} {past-p}
It might be that Pins of Iduino and Mega are different outputs or … try to see if you have proper driver for your board :
Follow: http://www.geeetech.com/wiki/index.php/Iduino_MEGA_R3
good luck
Mike
And please post if you get Iduino working
Hello Mike
Thank you for the super fast response
i thought iduino is a 100% arduino clone but it seams it isn’t, it has some pins that are different
driver is right,
i have a complete BQ Ramps board in my hephestos, i going to test it with estlcam
if nothing works i will get a original arduino
Update
tested the BQ Ramps, it works at the first try
im using this instead of the iduino
Hi Guys,
I’m currently facing some problems with the sense input… I’ve wired a long ground wire to the shaft of my Kress router. The sense input is wired to a tool length touch plate and to a connector box. When I don’t have any filtering, the sense input will be triggered, when I switch on the Kress router…
So I’ve followed the suggestion in Estlcam and added a 1kOhm resistor and a 100nF capacitor. Now it will not trigger the sense input, when I’m switching on the Kress. But, while the milling job is running, sometimes it happens again, that the sense input will be triggered and the machine stops.
When I unplug the sense input completely, everything works fine and the job will never stop.
Does someone had the same experiences?
I’m thinking about applying a 4.7kOhm resistor and a 330nF capacitor…
Cheers,
Juergen
Hi,
just increase the value of the capacitor but leave the resistor at 1k.
The input is internally pulled up by a 10k resistor - if the external resistor value is too large it may not respond properly anymore as it is no longer able to reach a low enough input level.
Also: prefer ceramic capacitors over other types.
Christian
Thanks Christian, I’ll try to increase the capacitor to 330nF and see, what’s happen.
I’ve already used ceramic capacitors, which will normally being used for stabilizing VCC in micro controller circuits.
Cheers,
Juergen
I’ve tried now 330nF, but haven’t got success… After 1 minute, the sense input was triggered again…
Any other idea, what I can do?
Thanks in advance,
Juergen
Hello Jurgen,
try disconnecting limit switches (X,Y & Z,…) and test your probe function again - I had similar problems when limit switches were connected … Which pin are you using for GND?
Hello Mike,
sorry, but I don’t have any limit switches connected…
I’m using the grounds on the limit switches connectors to connect the Kress shaft.
Many years ago I did developments in industrial environment and can remember, that it isn’t a good solution to wire TTL lines through a machine environment. PLC’s always have some special input circuits, which are mostly optocuppled and uses 24V or, 12V inputs, which needed a few mA to stimulate. We also had some software de-bouncing for the inputs.
I’ll search for a schematic of a PLC input circuit and then I’ll wire the tool length sensor plate to this input and put the Kress shaft to +12V supply…
Christian, is there any de-bouncing programed in the AVR firmware?
Cheers,
Juergen
Recently found this article:
http://www.edn.com/design/analog/4420398/1/Isolated-PLC-digital-inputs-for-industrial-control
This is, what I had in mind for a industrial input circuitry…
I’ll need to calculate the right values for the resistors to be used as a 12V input and will give it a try…
Cheers,
Juergen
Hello,
On Arduino Uno I had used +5V GRD and had similar problems, on Mega I used +12V GND from power supply unit and I did not need to add any resistors or caps- Try to change GND Juergen…
http://www.ebay.de/itm/1Pcs-Neues-Adum1201-Adum1201arz-Magnetischer-Isolator-Ersetzen-Optocouplers-P-/232123504384?hash=item360ba39700:g:WGMAAOSwUEVYDdAz
adum1201 adum1201arz magnetic isolator replace optocouplers
1pcs new adum1201 adum1201arz magnetic isolator replace optocouplers
Notizen vor der Bestellung:
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Treten Sie mit uns bitte in Verbindung, bevor Sie Debatte öffnen, versprechen wir, jedes Problem sorgfältig zu lösen.
The ADuM120x are dual channel digital isolators based on Analog Devices’ iCoupler technology. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
The ADuM120x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). Both parts operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. In addition, the ADuM120x provide low pulse-width distortion (< 3 ns for CR grade) and tight channel-to-channel matching (< 3 ns for CR grade). Unlike other optocoupler alternatives, the ADuM120x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
FEATURES.
1.Narrow body SOIC 8-lead package.
2.Low power operation.
–5V operation
----1.1 mA per channel maximum / 0 Mbps to 2 Mbps
----3.7 mA per channel maximum / 10 Mbps
----8.2 mA per channel maximum / 25 Mbps
–3V operation 0.8 mA per channel maximum / 0 Mbps to 2 Mbps
----2.2 mA per channel maximum / 10 Mbps
----4.8 mA per channel maximum / 25 Mbps
3.Bidirectional communication.
4.3V/5V level translation.
5.High temperature operation: 105 °.
6.High data rate: dc to 25 Mbps (NRZ).
7.Precise timing characteristics.
----3 ns maximum pulse-width distortion
----3 ns maximum channel-to-channel matching
8.High common-mode transient immunity: > 25 kV/us.
9.Safety and regulatory approvals.
–UL recognition
----2500 V rms for 1 minute per UL 1577
–CSA component acceptance notice #5A
–VDE certificate of conformity
----DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
----DIN EN 60950 (VDE 0805): 2001-12; DIN EN 60950: 2000
----VIORM = 560 V peak
APPLICATIONS:
Size-critical multichannel isolation.
SPI interface/data converter isolation.
RS-232/RS-422/RS-485 t
