Slides from Emergency Chicagoland Commodore Convention 2015. Wi-Fi Modem and Virtual Input Device

2. 1. Update on the Gaming Glove Kickstarter
2. New project: Wi-Fi Modem for C64
3. New project:Virtual Input Device

3.  Business partner’s family health issues
 Base sensor board is way too expensive – investigating
alternatives
 Fashion designer dropped out (new day job) – in discussions
with others
 A lot of “real life” happened this year

4.  Kickstarter page is ready to launch, complete
with promo video
 Prototype PCBs are complete and tested
 It will happen!

6.  Learning exercise for designing PCBs!
 Started with Eagle and
switched to Fritzing
(www.fritzing.org)
 Prototypes manufactured at
OSH Park (www.oshpark.org)

7.  User Port device
 Hayes emulation or menu-driven
 All RS-232 lines (RTS, DCD, DTR, RI, etc) connected to User Port
 802.11 b/gWi-Fi
 OnboardTCP/IP stack includes DHCP, UDP, DNS, ARP, ICMP,
HTTP client, FTP client andTCP
 SecureWi-Fi authentication viaWEP, WPA-PSK (TKIP), and
WPA2-PSK (AES)
 UP9600 hack supported
 Onboard MicroView (Arduino Uno with OLED) - Programmable
 64 x 48 OLED display
 Reset Buttons for C64/MicroView/Wifly

8. C64
Access
Point
RN-XV
“Wifly”
Module
“MicroView”
Arduino
Uno+OLED
Serial Serial 802.11
Wi-FiRS-232
Signals
Terminal
Program
(Novaterm,
Striketerm,
CCGMS, etc)
Arduino Sketch
(Hayes Emulation,
Custom)
RN-171 Firmware
(802.11Wi-Fi,
TCP/IP Stack,
DHCP, DNS, etc)
Optional Direct Connection for Debugging/Configuration
GPIO

9.  Default: As per block diagram
 Standalone: Power jack provided for +3.7V to +16V to use the
MicroView and RN-XV on their own
 Interfacing: Remove RN-XV Wifly and use MicroView’s GPIO
to interface C64 to outside world (analog input, PWM output,
digital I/O and I²C) – all pins broken out along top of board

10.  Six prototype boards manufactured – currently onVersion 2
 Software in very alpha state, but functionality proven
 Code and documentation on GitHub
(https://github.com/LeifBloomquist/WiFiCart)
 Outstanding issue with buffer overruns (next slide)
 Yes, I plan to sell these! Price ~$160 USD + shipping
 Recommend MicroView programmer for $20 more

11. C64
Access
Point
RN-XV
“Wifly”
Module
“MicroView”
Arduino
Uno+OLED
Buffer ~200 bytes
(Novaterm)
Buffer ~1000 bytes
Buffer 1500
bytes?
Incoming content @ 54 Mbps
5,400,000 bytes/sec
 Even at 9600 baud with flow control, characters dropped when
data comes in a burst that exceeds all buffers

12. ?

14.  Tiny PCB that interfaces Arduino Nano to C64 Control Port
 Emulates Joystick, Paddles (X/Y), 1351 Mouse (soon!)
 Yes Glenn, you can use it with GEOS
 All Arduino Pins are broken out for interfacing sensors
 USB (Mini-B) interface to PC –Virtual Serial Port
 I am planning to sell these too!
$10 for the PCB, $20 populated, $50 with Nano

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