Keymu: Difference between revisions
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While visually similar to the FunKey S, the Keymu used significantly different components compared to its "FunKey" branded successors. The Keymu was powered by the [[w:Intel Edison|Intel Edison]], a [[w:computer-on-module|computer-on-module]] board roughly the size of an SD card that combined the system's CPU, RAM, and storage, in addition to unused Wi-Fi and Bluetooth capabilities. Due to Edison's discontinuation soon after the reveal of the Keymu, however, future systems designed by the FunKey Team, including the FunKey S, would make use of the [[w:ARM Cortex-A7|ARM Cortex-A7]] microprocessor instead. Other differences between the Keymu and the later FunKey branded systems include the use of the Edison's built-in 4GB of [[w:MultiMediaCard#eMMC|eMMC]] memory for data storage rather than a microSD card, the lack of a functional speaker in the prototype unit (though it was possible to implement one), a lower maximum resolution of 128 by 128 pixels, and a lower-capacity 220 mAh battery. |
While visually similar to the FunKey S, the Keymu used significantly different components compared to its "FunKey" branded successors. The Keymu was powered by the [[w:Intel Edison|Intel Edison]], a [[w:computer-on-module|computer-on-module]] board roughly the size of an SD card that combined the system's CPU, RAM, and storage, in addition to unused Wi-Fi and Bluetooth capabilities. Due to Edison's discontinuation soon after the reveal of the Keymu, however, future systems designed by the FunKey Team, including the FunKey S, would make use of the [[w:ARM Cortex-A7|ARM Cortex-A7]] microprocessor instead. Other differences between the Keymu and the later FunKey branded systems include the use of the Edison's built-in 4GB of [[w:MultiMediaCard#eMMC|eMMC]] memory for data storage rather than a microSD card, the lack of a functional speaker in the prototype unit (though it was possible to implement one), a lower maximum resolution of 128 by 128 pixels, smaller buttons, and a lower-capacity 220 mAh battery. Features only implemented in the later FunKey S and not in the Keymu or FunKey Zero include a magnetic "sleep-mode" mechanism, a protective glass layer above the display, a Menu button, and an improved hinge. |
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== Comparison == <!--T:6--> |
== Comparison == <!--T:6--> |
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Revision as of 14:30, 24 October 2020
The Keymu was a keychain handheld emulator device created by Vincent and Michel of the FunKey Team in 2017.
Development
Inspired by the initial reveal of the PocketSprite in 2016, the duo worked on creating a similar keychain-sized emulator system that would have a clamshell design. Resembling the larger Game Boy Advance SP just as the PocketSprite had resembled the Game Boy Color, the Keymu was first shown off in a video released in June 2017. Due to positive reception to their device from viewers and several media outlets, the FunKey Team decided to improve the Keymu to turn it into a commercially viable product. Following the creation of the FunKey Zero prototype, a keychain system that resembled the original Game Boy Advance, the team created the FunKey S, a slimmer and more powerful version of the original Keymu system.
Specifications
While visually similar to the FunKey S, the Keymu used significantly different components compared to its "FunKey" branded successors. The Keymu was powered by the Intel Edison, a computer-on-module board roughly the size of an SD card that combined the system's CPU, RAM, and storage, in addition to unused Wi-Fi and Bluetooth capabilities. Due to Edison's discontinuation soon after the reveal of the Keymu, however, future systems designed by the FunKey Team, including the FunKey S, would make use of the ARM Cortex-A7 microprocessor instead. Other differences between the Keymu and the later FunKey branded systems include the use of the Edison's built-in 4GB of eMMC memory for data storage rather than a microSD card, the lack of a functional speaker in the prototype unit (though it was possible to implement one), a lower maximum resolution of 128 by 128 pixels, smaller buttons, and a lower-capacity 220 mAh battery. Features only implemented in the later FunKey S and not in the Keymu or FunKey Zero include a magnetic "sleep-mode" mechanism, a protective glass layer above the display, a Menu button, and an improved hinge.
Comparison
| Name | Keymu | FunKey Zero | FunKey S |
|---|---|---|---|
| Image |  |
 |
 |
| Dimensions | 1.65" x 1.81" x 0.67" 42 x 46 x 17 mm |
~3.45" x ~1.79" x ~0.32" ~87.6 x ~45.5" x ~8.1 mm |
1.67" x 1.75" x 0.54" 42.5 x 44.5 x 13.8 mm |
| Weight | N/A | 1 oz 30 g | |
| Display | 1.5" (38.1 mm) 128x128 OLED | 1.54" (39.1 mm) 240x240 LCD IPS | |
| Processor | Atom 2-Core @ 500 MHz | ARM Cortex-A7 @ 1.2 GHz | |
| RAM | 1 GB LPDDR3 | 64 MB DDR2 | |
| Maximum storage | 4 GB EMMC | 128 GB microSD | |
| Audio | ∅11.7 mm mono at 700 mW (not present in the prototype) |
∅10 mm mono at 500 mW (headphone jack also included) |
∅10 mm mono at 500 mW |
| Battery | 220 mAh lithium-ion | 420 mAh lithium-ion | 410 mAh lithium-ion |
