protovac/README.md
2022-10-16 18:58:00 -06:00

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# PROTOVAC UNIVERSAL COMPUTER
Protovac is software for an old dumb terminal CRT screen that's used to display
random info about Protospace. There's a few interactive features like sending
messages to a huge marquee LED sign and performing calculations.
![and old CRT screen from 1983 with a keyboard infront of it](media/pic1.jpg)
Here are some of its screens:
```
_______ _______ ___ _________ ___ ____ ____ _ ______
|_ __ \|_ __ \ .' `. | _ _ | .' `.|_ _| |_ _|/ \ .' ___ |
| |__) | | |__) | / .-. \|_/ | | \_|/ .-. \ \ \ / / / _ \ / .' \_|
| ___/ | __ / | | | | | | | | | | \ \ / / / ___ \ | |
_| |_ _| | \ \_\ `-' / _| |_ \ `-' / \ ' /_/ / \ \_\ `.___.'\
|_____| |____| |___|`.___.' |_____| `.___.' \_/|____| |____|`.____ .'
UNIVERSAL COMPUTER
[S] Stats
[N] Sign
[C] Classes
[P] Protocoin
[T] Think
[A] About
Copyright (c) 1985 Bikeshed Computer Systems Corp.
```
```
PROTOVAC UNIVERSAL COMPUTER
Protospace Stats
================
Next meeting: Thu Sep 15, 2022 7:00 PM
Next clean: Sat Sep 17, 2022 10:00 AM
Next class: Vinyl Cutting and Application Course
Sat Sep 10, 2022 2:00 PM
Last class: Metal: Metal Cutting & Manual Lathe
Sat Sep 3, 2022 10:00 AM
Member count: 249 Green: 208 Paused / expired: 1209
Card scans: 14
[B] Back
```
```
PROTOVAC UNIVERSAL COMPUTER
Protospace Sign
===============
Send a message to the sign in the welcome room and classroom.
After sending, turn your head right and wait 5 seconds.
[E] Edit message
[B] Back
```
```
PROTOVAC UNIVERSAL COMPUTER
Protospace Classes
================== Instructor Cost Students
New Member Orientation and Safety
Sun Aug 28, 2022 2:00 PM Scott Y. Free 6 / 6
New Member Orientation and Safety
Fri Sep 2, 2022 7:00 PM Tim G. Free 6
Woodworking Tools 1: Intro to Saws
Sun Sep 11, 2022 2:00 PM Vince K. $20.00 8 / 8
Laser II: Trotec (Requires Laser I)
Sun Aug 28, 2022 11:00 AM Jack W. $30.00 3 / 5
Monthly Members Meeting
Thu Sep 15, 2022 7:00 PM Protospace Free 0
Monthly Cleanup and Group Lunch
Sat Sep 17, 2022 10:00 AM Protospace Free 2
[B] Back [J] Down [K] Up
```
```
PROTOVAC UNIVERSAL COMPUTER
Protocoin
=========
Protocoin is used to buy things from Protospace's vending machines.
Total in circulation: 70.0
Transactions:
ID Date Method Amount Category
44130 2022-08-31 Protocoin 1.00 Transfer
44129 2022-08-31 Protocoin -1.00 Transfer
44109 2022-08-29 PayPal 10.00 Exchange
44068 2022-08-26 PayPal 10.00 Exchange
44062 2022-08-24 PayPal 10.00 Exchange
44055 2022-08-24 PayPal 20.00 Exchange
44053 2022-08-23 Protocoin 1.00 Transfer
44052 2022-08-23 Protocoin -1.00 Transfer
44048 2022-08-23 PayPal 19.00 Exchange
44047 2022-08-23 PayPal 1.00 Exchange
[B] Back [J] Down [K] Up
```
```
PROTOVAC UNIVERSAL COMPUTER
Think
=====
Give Protovac something to think about.
[E] Edit prompt
Examples:
42 + 69
55 kg to lbs
density of lead
if x = 4, what is 3x + 50?
force m=150g, a=50cm/s^2
boiling point of benzene at 550 torr
goats with highest milk yield
how long did the Aztec empire last?
[B] Back
```
## Development Setup
For developing on your own Ubuntu / Debian machine:
```
$ sudo apt update
$ sudo apt install python3 python3-dev python3-pip python3-virtualenv libopenjp2-7 git
$ git clone https://github.com/Protospace/protovac.git
$ cd protovac/
$ virtualenv -p python3 env
$ source env/bin/activate
(env) $ pip install -r requirements.txt
(env) $ python main.py
```
## Rasberry Pi Setup
### SD Card
Format SD card, mount on your own system.
```
$ cd boot/ # on SD card
$ touch ssh
$ touch wpa_supplicant.conf
```
Edit `wpa_supplicant.conf`:
```
country=CA
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
network={
ssid="YOUR_NETWORK_NAME"
psk="YOUR_PASSWORD"
key_mgmt=WPA-PSK
}
```
Append to `config.txt`:
```
enable_uart=1
```
Optionally set up a cronjob:
```
$ cd rootfs/ # on SD card
$ sudo touch var/spool/cron/crontabs/pi
$ sudo chmod u=rw,og= var/spool/cron/crontabs/pi
$ sudo chown pi:crontab var/spool/cron/crontabs/pi
```
Edit `var/spool/cron/crontabs/pi` (optional):
```
*/5 * * * * # example command that runs every 5 minutes
```
### On Raspberry Pi
SSH into the Raspberry Pi for setup:
```
$ sudo apt update
$ sudo apt install python3 python3-dev python3-pip python3-virtualenv libopenjp2-7 vim byobu git
$ sudo hostnamectl set-hostname protovac
```
Replace "raspberrypi" with "protovac" in `/etc/hosts`.
Create "protovac" user:
```
$ sudo adduser protovac
$ sudo usermod -aG dialout protovac
$ sudo usermod -aG lp protovac
$ sudo usermod -aG gpio protovac
```
Edit `/lib/systemd/system/serial-getty@.service`:
```
ExecStart=-/sbin/agetty --autologin protovac 9600 %I mt70
```
Edit `/etc/passwd`:
```
protovac:x:1001:1001:,,,:/home/protovac:/home/pi/protovac/main.py
```
```
$ cd
$ chmod o+rx ~
$ git clone https://github.com/Protospace/protovac.git
$ cd protovac/
$ sudo tic -o /lib/terminfo/ mt70
$ virtualenv -p python3 env
$ source env/bin/activate
(env) $ pip install -r requirements.txt
(env) $ python main.py
# Make sure it loads, then press D, then X to exit
```
Restart getty:
```
$ sudo systemctl daemon-reload
$ sudo systemctl restart serial-getty@ttyS0.service
```
### Dymo LabelWriter 450 Setup
Make sure it's connected with `sudo lsusb`:
```
Bus 001 Device 002: ID 0922:0020 Dymo-CoStar Corp. LabelWriter 450
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
```
Install CUPS:
```
$ sudo apt-get update
$ sudo apt-get install cups cups-client printer-driver-dymo
$ sudo lpadmin -p dymo -v `sudo lpinfo -v | grep DYMO | cut -d" " -f2` -m 'dymo:0/cups/model/lw450.ppd'
# wait...
$ sudo cupsenable dymo
$ sudo cupsaccept dymo
```
Test the printer:
```
$ echo "hello world" | lp -d dymo -
```