A modified TZXDuino with WiFi support and other goodies By Agustín Giménez Bernad, 2019
Developed with Visual Studio 2017 and Visual Micro for Arduino
I HATE to have to get the card out, place it on my computer, create the correct folders copy the tapes and add it again to the device each time I'm testing new games, so I decided to add an inexpensive ESP-01 WiFi module to send the tapes directly from my pc through WiFi. Yes, I'm a lazy guy :D
Just drop the tape file to the client window and let it place where it should be!
To use the WiFi server press the WiFi button, to terminate the server press it again. If an error happens there will be a notice with the error code and the WiFi server will terminate automatically
To fast-forward FAT records, keep pressed the up or down button and it will start to jump by ten records per second
Currently the AP configuration is stored in defines, I plan to add support to read it from the SD card.
Had to drop support for the motor and different LCD's as the device is running out of memory and program space.
Currently only support for 16x2 parallel LCD in 4 bit mode (the only one I had available :P)
I plan to re-add LCD support as compile time conditions again but need to buy them to test it. Feel free to add it yourself and create a pull request if you have some available.
Use an ESP-01 module at 115200bps connected to the Arduino's hardware serial port. DO NOT USE SOFTWARE SERIAL, IT WILL NOT READ THE DATA CORRECTLY AT 115200bps. Also, remember that ESP-01 IS NOT 5V TOLERANT, use an adapter shield like this:https://www.aliexpress.com/item/ESP8266-ESP-01-ESP01-Serial-WiFi-Wireless-Adapter-Module-3-3V-5V-Compatible-Serial-Board-For/32893131651.html
Tested firmware:Ai-Thinker_ESP8266_AT_Firmware_DOUT_v1.5.4.1-a_20171130 Found at http://acoptex.com/project/289/basics-project-021b-how-to-update-firmware-esp8266-esp-01-wi-fi-module-at-acoptexcom/ Beware, it must be an ESP-01 module with a 8Mb flash
- Added support for .CAS (MSX) files (need tweak, only 1200bps right now).
- Added support for drag&drop multiple files at once
- Transfer is no more Base64 encoded, puer binary for maximum performance
- Solved some problems with concrete files
- WiFi settings no more in defines, place a file named "wifi.ini" on the root of your SD card with two lines, the first line must contain the AP name and the second the AP password
- Re-implemented I2C display
- Code cleanup
- Added comments to the code
- Mixed data buffers in a single one to reduce memory footprint (and to be able to increas it and speed up transfers)
- All defines are now placed in ZXWiFino.h
- Added "#pragma region"s to make defines more readable (if you use Visual Studio)
BEWARE! I have increased the data buffer to 250 bytes, it's taking a lot of memory and using the I2C library may cause the program to fail randomly as it will run out of memory, reduce it's size and also remember to reduce the packet length in the client if you face problems using it.