Due to issues in the storage facility holding the HP 21/MX system, I can't pick it up today. I am guessing I will have to do it next week, since I will be busy later this week and weekend with the fundraiser event.
I did use the time to download many manuals I will need to work on the system, as well as the simh simulator to let me play with the machine language. Until I see the system I won't know what options, components and peripherals are there, thus I can't finish the downloading of manuals now.
PIRATE SHIP BAR COMPLETION OF CONTROLLER
Watching the tracking reports of UPS and USPS was reassuring until I received an email overnight that one of the two amplifiers I ordered is 'permanently unavailable' and that part of the order is cancelled. Why the heck couldn't they tell me two days ago when they shipped everything, so that if I had needed that I could take alternative action.
Then received a midmorning email that the shipment was now delayed and won't arrive until tomorrow. UPS truck from Oakland to Sunnyvale left 6:22AM but didn't arrive before 10AM cutoff for today's delivery - a 42 mile journey made at less than 11 1/2 MPH. No refund of the rush shipment charge. I decided to return the items for refund, printed labels today and will drop them off tomorrow after they belatedly arrive.
While I waited for deliveries, I loaded toolboxes and plastic bins with the supplies and tools I will need later this week. There are so many parts to this project that it will be a logistical challenge to bring everything
When the TF card arrived, the MP3 file was placed on it but I was unable to get the MP3 player board to work. I went as far as to set it up with a serial link and the software from the maker, DFRobot, but their software could never see their board and no sound came out.
I moved on to plan B, which is to use some kind of MP3 player to loop the song and feed it into the powered PC speakers. I chose my iPad, synced the song and verified that all worked well with a continuous loop. All that remains is to wire up the mini phone jack for the gunshot audio board and pack up the controller.