My project is control of my telescope via my pc and Ascom. I have completed this aalready but it failed - rubbish soldering I think. Not done much of that.
I am using an Adruino Uno via USB and the PC.
In turn the Uno is connected to my scope's hand controller via my failing Veroboard construction. I should add here that I am using another persons schematic which had worked for him.
Pls see the attached part schematic.
Question 1
Related to the connections to Gnd. I don't undersand why so many. Can a common Gnd be created rather than all the connections in the schematic? From what I see I am losing 50% of the use of the ILQ74 Optocooupler. I could do other things like control a Dew Heater for the main lens and eyepiece. Am I right, or is it necessary to ground the unused connections?
Question 2
From the same schematic it can be seen that the signal passes through the ILQ4 and goes to the various pins of an RJ12 socket. Now the question - hw to connect to the RJ12 socket. I've tried soldering and ended up with a rather strange black blob. I've tried some terminal ends but they fall off. Any pointers on this for me?
Great site.
Hope this is not too annoying.
faceter
I am using an Adruino Uno via USB and the PC.
In turn the Uno is connected to my scope's hand controller via my failing Veroboard construction. I should add here that I am using another persons schematic which had worked for him.
Pls see the attached part schematic.
Question 1
Related to the connections to Gnd. I don't undersand why so many. Can a common Gnd be created rather than all the connections in the schematic? From what I see I am losing 50% of the use of the ILQ74 Optocooupler. I could do other things like control a Dew Heater for the main lens and eyepiece. Am I right, or is it necessary to ground the unused connections?
Question 2
From the same schematic it can be seen that the signal passes through the ILQ4 and goes to the various pins of an RJ12 socket. Now the question - hw to connect to the RJ12 socket. I've tried soldering and ended up with a rather strange black blob. I've tried some terminal ends but they fall off. Any pointers on this for me?
Great site.
Hope this is not too annoying.
faceter