My daughter and I are heading to Nova Scotia for a self supported tour. Planning to start and finish in Sydney traveling counter clockwise. I have the trip mapped out and was wondering if anyone has any suggestions regarding must see items or things we should not overlook. We arent doing many miles a day. We are looking to have a reasonably relaxing trip.
I have 3 working fully complete Ben Eater 8 bit PCB computers based on these PCB files. I would like to sell them for $150 each. The PCBs cost $48 each and I have no idea how much all the parts cost. I paid $8 for the 74LS76 and roughly $10 each for the 28C16A chips of which there are 3. The boards are 100% complete, but I am short the 3x28C16 chips on one of the computers. Let me know if anyone has interest. I also have one left over PCB that is not populated at all. $48 for that.
I just finished building the 8 bit computer from the gerber files found here. I found 2 minor issues but can confirm the board works fine. I had 5 PCBs produced via PCBWAY. I am happy to part with 3 of them. Prices have gone up it seems from previous posts on here but I had them made for $48 each delivered. I would also be able to supply most if not all of the parts needed for fabrication at cost. Most of the parts I have I bought from digikey with the exception of some of the more hard to get ones. When buying from digikey there was a decent discount for buying in bulk so I just did that. Hence the extras available. Let me know if you have any questions. I would perhaps even considering supplying a complete board if someone was interested.
One specific difference to note is that the pcb uses the 74LS76, whilst Ben uses the 74LS107. So when looking through Ben's part list you need to switch out that part. I bought my 74LS76 on ebay. I do have an extra.
I thought I would also point out that I did not build the EEPROM programmer. I bought the T48 programmer and used the github file to get the bin files. It worked really well. The bin file for the 7 segment display here is for a signed integer which limits the values to +/- 127. If you want to go above 127 you need a different bin file. I just pasted the python code at the link above into chatgpt and asked it to generate the bin file to display unsigned integers. I needed this for the Fibonacci program to run to 255.