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| -rw-r--r-- | non-posts/wavedrum/index.skr | 8 | ||||
| -rw-r--r-- | posts/2022-01-24-wavedrum-modes.md | 114 |
2 files changed, 118 insertions, 4 deletions
diff --git a/non-posts/wavedrum/index.skr b/non-posts/wavedrum/index.skr index f1b2bfc..7542fa8 100644 --- a/non-posts/wavedrum/index.skr +++ b/non-posts/wavedrum/index.skr @@ -19,9 +19,8 @@ (p [It is possible to load firmware from the microSD card by pressing ,(em [Write]) and ,(em [1]) while powering on the Wavedrum, - followed by pressing ,(em [Write]) again (another undocumented - mode can be entered by pressing ,(em [Write]) and ,(em [Mode]) - while powering on).]) + followed by pressing ,(em [Write]) again. There are other undocumented + modes that I described in a blog post.]) (p [The Wavedrum unfortunately rejects any modified firmware. The Oriental edition will not load the firmware of the Original/Black @@ -31,10 +30,11 @@ out how the Wavedrum validates the data on the SD card before deciding to reject them.]) - (h2 [Blog posts]) (ul + (li (ref "/posts/2022-01-24-wavedrum-modes.html" + "Undocumented Wavedrum modes")) (li (ref "/posts/2013-08-11-hacking-the-wavedrum.html" "Hacking the Wavedrum")) (li (ref "/posts/2013-10-31-wavedrum-data-comparison.html" diff --git a/posts/2022-01-24-wavedrum-modes.md b/posts/2022-01-24-wavedrum-modes.md new file mode 100644 index 0000000..ca00709 --- /dev/null +++ b/posts/2022-01-24-wavedrum-modes.md @@ -0,0 +1,114 @@ +title: Undocumented Wavedrum modes +date: 2022-01-24 00:00 +tags: DIY, electronics, music, hacking, wavedrum +--- + + +The manual mentions two special modes that can be entered by holding +down buttons while powering on: hold down `Write` while powering on +and you can reset to factory settings; hold down `Mode` while powering +on and you can double the output volume. + +The manual does *not* mention these additional modes: + +## Information modes + +These modes only provide version information before booting up +normally. + +- **Hold button 1.** The display shows `SyS`, followed by the version. + In my case that's `2.02`. It then proceeds to boot up. + +- **Hold button 2.** The display shows `Sub`, followed by the version. + In my case that's `1.10`. It then proceeds to boot up. + +- **Hold button 3.** The display shows `dat`, followed by the version. + In my case that's `2.02`. It then proceeds to boot up. + +- **Hold button 4.** The display briefly shows `InF`, and then cycles + through the version information that can be obtained with the + previous three modes. + + +## Update modes + +These modes allow changing the firmware. + +- Hold **Write** and **button 1**. The display blinks `SyS`. Upon + pushing *Write* it displays `Lod` followed by a blinking `End`, + presumably loading firmware. (From where?) It is possible to push + the buttons *1*, *2*, *3*, or *4* to switch between `SyS`, `Sub`, + `dSP`, and `S_d`, respectively. But the *Write* button only has an + effect when `SyS` (button 1) is selected. + +- Hold **Write** and **button 2**; the display blinks `Sub`. This is like the + previous mode, except that `Sub` is selected. + +- Hold **Write** and **button 3**; the display blinks `dSP`. This is like the + previous modes, except that `dSP` is selected. + +- Hold **Write** and **button 4**; the display blinks `S_d`. This is like the + previous modes, except that `S_d` is selected. + +Finally, there's the well-known mode to reset to factory settings by +holding **Write** and **Mode** while powering on. + + +## Test modes + +- Hold **button 1** and **button 3**; the display briefly shows `SLF`, + probably for "self test". It then shows `SyS`, followed by the + version number and then lights up all LEDs. Pushing *Mode* then + lights up only the LED above the *Write* button. Hitting *Write* + advances the LED to the next button, and so on. + + When the display is tested, hit *Mode* to get to test the + *Value* knob; hit *Mode* again to test the *Value* knob's range from 0 to 99; hit it yet again to test + the range from 0 to 7. That's all that can be tested here. + +- Hold **button 1** and **button 4**; the display shows `Aud.`. It + then lights up LED 1 and displays `A.In`, presumably to test audio + input. Selecting *button 2* it shows `OFF` and the output goes + silent. Selecting *button 3* shows `Pie.`; the signal of the piezo + sensors is passed straight to the output. Selecting *button 4* + shows `ALG.` and you can hear the sounds produced by a simple test + algorithm when you play the head and rim. + +- Hold **button 2** and **button 4**; the display shows `CAL.`, + probably meaning "Calibration". It lights up LED 1 and displays the + current value of the pressure sensor. When you select *button 2* + and strike the head, the display shows the corresponding velocity. + When you select *button 3* and strike the rim, the display shows the + corresponding velocity. Hold down *button 3* and you see what seems + to be an amplification factor. By default this shows `0.75`. This + can be adjusted with the *Value* knob in the range from `0.00` all + the way to `4.00`. There does not seem to be a way to save changes. + + Selecting *button 4* the display shows where and how strongly the + drum is hit. + +- Hold down **buttons 1, 2, 3, and 4**, and also hold **Mode**; the + display briefly shows `deb`, which I assume means "debug". It then + seems to boot up normally, but upon completion will have entered an + absolutely bizarre mode where the *buttons 1 and 2* are used to go + down or up in a list of presets from `01` to `26`; similarly, + *buttons 3 and 4* are used for selecting one of 26 presets, probably + for the rim sounds. + + The value dial goes from `050` to `500`, but I don't know what value it + controls. *Mode* and *button 1* start a constant fast + automatic trigger of the head. Hitting the combo again stops the + automatic trigger. + + *Mode* and either *button 2* or *button 3* seems to mute the audio. + *Mode* and *button 4* mutes all generated sounds and passes the + unprocessed sound of the piezo sensors through. + + I'm not sure what the *Write* button does; pushing it multiple times + seems to cycle between four different values, but it is not clear + what they are. When holding *Mode*, pushing *Write* + twice selects the next reverb, cycling from `r00` to `r10`. + + +Read [more posts about the Wavedrum here](/tags/wavedrum.html). + |