Tapuino / Tape Emulation Mods - Revision history

Josh at 13:42, 22 January 2026

2026-01-22T13:42:16Z

← Older revision		Revision as of 14:42, 22 January 2026
Line 14:		Line 14:
	Because it plugs into the cassette port rather than the serial IEC bus, Tapuino is an attractive solution for VIC-20 owners and for C64 software that was never released on disk.		Because it plugs into the cassette port rather than the serial IEC bus, Tapuino is an attractive solution for VIC-20 owners and for C64 software that was never released on disk.

	== 📜 History ==		== History ==
	* '''2014-04 – Tapuino v1.0''' published on GitHub; Arduino Pro Mini + 16×2 LCD shield, push-buttons and SD-module.		* '''2014-04 – Tapuino v1.0''' published on GitHub; Arduino Pro Mini + 16×2 LCD shield, push-buttons and SD-module.
	* '''2015-02 – Hackaday write-up''' brings wider attention; hundreds of DIY units are built.		* '''2015-02 – Hackaday write-up''' brings wider attention; hundreds of DIY units are built.
Line 21:		Line 21:
	* '''2022 – Tapuino v2.x''' firmware rewrites the loader to support '''Turbo-TAPE''' fast-loaders and arbitrary sample rates up to 100 kHz.		* '''2022 – Tapuino v2.x''' firmware rewrites the loader to support '''Turbo-TAPE''' fast-loaders and arbitrary sample rates up to 100 kHz.

	== 🔧 Hardware Overview ==		== Hardware Overview ==
	{\| class="wikitable"		{\| class="wikitable"
	! Variant !! MCU / Clock !! Display !! Media !! Notable Features		! Variant !! MCU / Clock !! Display !! Media !! Notable Features
Line 48:		Line 48:
	Opto-isolation is optional; most PCBs use 74HC14/LM311 to shape the READ line back to digital logic levels.		Opto-isolation is optional; most PCBs use 74HC14/LM311 to shape the READ line back to digital logic levels.

	== 💾 Firmware & File Support ==		== Firmware & File Support ==
	Current stock firmware (v2.xx) recognises:		Current stock firmware (v2.xx) recognises:

Line 58:		Line 58:
	Menu navigation is via four push-buttons (Next, Prev, Play, Stop) or a rotary encoder; long-press on STOP enters settings where motor-sense polarity, turbo-boost and LCD contrast can be tweaked.		Menu navigation is via four push-buttons (Next, Prev, Play, Stop) or a rotary encoder; long-press on STOP enters settings where motor-sense polarity, turbo-boost and LCD contrast can be tweaked.

	== 🛠️ Building Your Own ==		== Building Your Own ==
	A DIY Tapuino can be completed for '''US$15–20''' in parts:		A DIY Tapuino can be completed for '''US$15–20''' in parts:

Line 75:		Line 75:
	Gerbers for multiple boards (Reloaded, Mini, Slim) are on GitHub under CERN-OHL-S or GPL-2.0 licences.		Gerbers for multiple boards (Reloaded, Mini, Slim) are on GitHub under CERN-OHL-S or GPL-2.0 licences.

	== 🚀 Usage Tips ==		== Usage Tips ==
	* Hold '''Play''' at power-on to enter fast-loader patch mode – needed for some turbo loaders that poll the keyboard.		* Hold '''Play''' at power-on to enter fast-loader patch mode – needed for some turbo loaders that poll the keyboard.
	* Keep SD cards formatted as FAT32 with 8.3 filenames; deep directory trees slow the directory parser.		* Keep SD cards formatted as FAT32 with 8.3 filenames; deep directory trees slow the directory parser.
Line 81:		Line 81:
	* For VIC-20, set AUTO-PRG offset to $1201 so PRG files auto-run after load.		* For VIC-20, set AUTO-PRG offset to $1201 so PRG files auto-run after load.

	== ⚖️ Alternatives & Related Projects ==		== Alternatives & Related Projects ==
	* '''Tapecart Micro-SD''' – cartridge-sized STM32 design streaming PRGs at 38 kBaud.		* '''Tapecart Micro-SD''' – cartridge-sized STM32 design streaming PRGs at 38 kBaud.
	* '''Casduino / ArduiTape''' – WAV player on Arduino Nano feeding READ line with pure analogue audio.		* '''Casduino / ArduiTape''' – WAV player on Arduino Nano feeding READ line with pure analogue audio.
Line 87:		Line 87:
	* '''Pi1541 “Tape Mode”''' – Raspberry Pi emulates both IEC disk and cassette via GPIO add-on.		* '''Pi1541 “Tape Mode”''' – Raspberry Pi emulates both IEC disk and cassette via GPIO add-on.

	== ⚠️ Limitations ==		== Limitations ==
	* Will not power a '''real''' Datasette motor; cannot be daisy-chained.		* Will not power a '''real''' Datasette motor; cannot be daisy-chained.
	* SAVE speed is limited to original 300 baud even in v2 firmware.		* SAVE speed is limited to original 300 baud even in v2 firmware.

Josh: /* 🔧 Hardware Overview */

2025-04-25T10:37:19Z

🔧 Hardware Overview

← Older revision		Revision as of 11:37, 25 April 2025
Line 29:		Line 29:
	\| '''Tapuino OLED''' \|\| Atmega328P \|\| 128×32 OLED \|\| micro-SD \|\| Smaller 5 × 7 cm PCB, rotary encoder option		\| '''Tapuino OLED''' \|\| Atmega328P \|\| 128×32 OLED \|\| micro-SD \|\| Smaller 5 × 7 cm PCB, rotary encoder option
	\|-		\|-
	\| '''Tapuino Reloaded''' ~~:contentReference[oaicite:7]{index=7}~~ \|\| Atmega328P (Nano) \|\| 128×32 OLED \|\| micro-SD \|\| All-SMD, USB update, protected 5 V regulator		\| '''Tapuino Reloaded''' \|\| Atmega328P (Nano) \|\| 128×32 OLED \|\| micro-SD \|\| All-SMD, USB update, protected 5 V regulator
	\|-		\|-
	\| '''Tapuino-W''' \|\| ESP-8266 (NodeMCU) \|\| 128×64 OLED \|\| micro-SD / Wi-Fi \|\| HTTP file upload, OTA firmware		\| '''Tapuino-W''' \|\| ESP-8266 (NodeMCU) \|\| 128×64 OLED \|\| micro-SD / Wi-Fi \|\| HTTP file upload, OTA firmware

Josh: Created page with "{{Infobox hardware | name = Tapuino / Tape-Port Emulation Mods | image = 260px | caption = '''Tapuino OLED v1.5''' assembled on a single 5 × 7 cm PCB | type = External solid-state replacement for Commodore '''Datasette''' | developer = Andrew Beer (“Sweetlilmre”) – original Tapuino design
Community forks: Arananet Reloaded, OpenC64 Tapuino, Tapuino OLED, Tapuino W, etc. | first_released..."

2025-04-25T10:37:00Z

Created page with "{{Infobox hardware | name = Tapuino / Tape-Port Emulation Mods | image = 260px | caption = '''Tapuino OLED v1.5''' assembled on a single 5 × 7 cm PCB | type = External solid-state replacement for Commodore '''Datasette''' | developer = Andrew Beer (“Sweetlilmre”) – original Tapuino design<br />Community forks: Arananet Reloaded, OpenC64 Tapuino, Tapuino OLED, Tapuino W, etc. | first_released..."

New page

{{Infobox hardware
| name = Tapuino / Tape-Port Emulation Mods
| image = [[File:Tapuino_oled_v1_top.jpg|260px]]
| caption = '''Tapuino OLED v1.5''' assembled on a single 5 × 7 cm PCB
| type = External solid-state replacement for Commodore '''Datasette'''
| developer = Andrew Beer (“Sweetlilmre”) – original Tapuino design<br />Community forks: Arananet Reloaded, OpenC64 Tapuino, Tapuino OLED, Tapuino W, etc.
| first_released = April 2014 – public GitHub release of Tapuino v1.0 firmware
| latest_release = Tapuino firmware v2.01 (Feb 2023)
| operating_voltage = 5 V DC (drawn from cassette port pin 2)
| application = Commodore 64, 64C, SX-64, VIC-20, C16/+4, PET* (with adaptor) – any IEC-less CBM 8-bit that uses the '''1530/1531 Datasette''' interface
}}

The '''Tapuino''' is an open-hardware, Arduino-based device that emulates Commodore’s 1530 '''Datasette''' mechanism, allowing cassette images (‎*.TAP*, ‎*.PRG*, ‎*.TCRT*) stored on a micro-SD card to be loaded, saved, and fast-forwarded with perfect digital fidelity.
Because it plugs into the cassette port rather than the serial IEC bus, Tapuino is an attractive solution for VIC-20 owners and for C64 software that was never released on disk.

== 📜 History ==
* '''2014-04 – Tapuino v1.0''' published on GitHub; Arduino Pro Mini + 16×2 LCD shield, push-buttons and SD-module.
* '''2015-02 – Hackaday write-up''' brings wider attention; hundreds of DIY units are built.
* '''2016-17 – “Reloaded” & OLED forks''' replace the LCD with a 128×32 I²C OLED and move to an Arduino Nano for native USB flashing.
* '''2019 – Tapuino-W''' adds ESP-8266 Wi-Fi so images can be pushed over the network.
* '''2022 – Tapuino v2.x''' firmware rewrites the loader to support '''Turbo-TAPE''' fast-loaders and arbitrary sample rates up to 100 kHz.

== 🔧 Hardware Overview ==
{| class="wikitable"
! Variant !! MCU / Clock !! Display !! Media !! Notable Features
|-
| '''Tapuino v1.0''' || Atmega328P @ 16 MHz || 16×2 HD44780 LCD || micro-SD || Through-hole shield stack
|-
| '''Tapuino OLED''' || Atmega328P || 128×32 OLED || micro-SD || Smaller 5 × 7 cm PCB, rotary encoder option
|-
| '''Tapuino Reloaded''' :contentReference[oaicite:7]{index=7} || Atmega328P (Nano) || 128×32 OLED || micro-SD || All-SMD, USB update, protected 5 V regulator
|-
| '''Tapuino-W''' || ESP-8266 (NodeMCU) || 128×64 OLED || micro-SD / Wi-Fi || HTTP file upload, OTA firmware
|-
| '''OpenC64 Datasette Saver''' || STM32F103 || 0.96" IPS || micro-SD || Adds over-current & brown-out protection
|}

=== Electrical Interface ===
The Tapuino connects to the six-pin '''cassette port''':

* '''+5 V''' (pin 2) – powers the MCU (≈70 mA peak with OLED).
* '''GND''' (pin 1)
* '''MOTOR''' output (pin 5) – emulated by polling; Tapuino ignores the line or gates file play.
* '''READ''' (pin 4) – 0/+5 V pulse stream generated by DAC/bit-bang at original 300 baud or turbo rates.
* '''WRITE''' (pin 3) – edge-captured and stored as WAV-like data when user presses “Record”.
* '''SENSE''' (pin 6) – always pulled low (tape present).

Opto-isolation is optional; most PCBs use 74HC14/LM311 to shape the READ line back to digital logic levels.

== 💾 Firmware & File Support ==
Current stock firmware (v2.xx) recognises:

* '''.TAP v0/v1''' images up to 64 MB.
* '''.PRG''' files auto-wrapped in a minimal TAP header.
* '''.TCRT''' (Tapecart) container – load *instantaneously* via turbo @ 38 kBaud.
* Partial experimental support for '''TurboTape''', '''SpeedDOS''', '''Vorpal''' timing.

Menu navigation is via four push-buttons (Next, Prev, Play, Stop) or a rotary encoder; long-press on STOP enters settings where motor-sense polarity, turbo-boost and LCD contrast can be tweaked.

== 🛠️ Building Your Own ==
A DIY Tapuino can be completed for '''US$15–20''' in parts:

; Mandatory
: * Arduino Nano (ATmega328P)
: * micro-SD module (5 V tolerant)
: * 0.96″ monochrome OLED (I²C)
: * 74HC14 Schmitt trigger + 2N3904 for READ shaping
: * 6-pin edge connector or sacrificial Datasette cable

; Optional
: * Level-shifting buffer for WRITE
: * Protective polyfuse on +5 V line
: * 3D-printed enclosure

Gerbers for multiple boards (Reloaded, Mini, Slim) are on GitHub under CERN-OHL-S or GPL-2.0 licences.

== 🚀 Usage Tips ==
* Hold '''Play''' at power-on to enter fast-loader patch mode – needed for some turbo loaders that poll the keyboard.
* Keep SD cards formatted as FAT32 with 8.3 filenames; deep directory trees slow the directory parser.
* You can '''record''' real tapes: insert blank SD, press ➤⏺ combo and start the physical tape in the Datasette.
* For VIC-20, set *AUTO-PRG offset* to $1201 so PRG files auto-run after load.

== ⚖️ Alternatives & Related Projects ==
* '''Tapecart Micro-SD''' – cartridge-sized STM32 design streaming PRGs at 38 kBaud.
* '''Casduino / ArduiTape''' – WAV player on Arduino Nano feeding READ line with pure analogue audio.
* '''Super‐SCP TapeCart Deluxe''' – CPLD-based loader with 2 MB internal flash.
* '''Pi1541 “Tape Mode”''' – Raspberry Pi emulates both IEC disk and cassette via GPIO add-on.

== ⚠️ Limitations ==
* Will not power a '''real''' Datasette motor; cannot be daisy-chained.
* SAVE speed is limited to original 300 baud even in v2 firmware.
* Very long turbo loaders (>100 kB/s) may exceed the 16 MHz timer resolution.
* C16/+4 require a €3 1531-to-1530 passive adaptor due to different pin-out.

== See Also ==
* [[Commodore 1530 Datasette]]
* [[SD2IEC & IEC-2-SD Adapters]]
* [[PLA Replacement Options]]

[[Category:Commodore 64 Modifications and Enhancements]]
[[Category:Commodore Systems]]