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fix: improve typing reliability with better debounce and layer-tap ti… #6

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Merged
Simsalaba merged 2 commits into from
Apr 30, 2026
Merged

fix: improve typing reliability with better debounce and layer-tap ti… #6

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c01796d
fix: improve typing reliability with better debounce and layer-tap ti…
Simsalaba Apr 30, 2026
5530e01
Merge branch 'master' into fix/typing-reliability
Simsalaba Apr 30, 2026
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6 changes: 3 additions & 3 deletions KEYMAP.md
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Original file line number Diff line number Diff line change
Expand Up @@ -87,7 +87,7 @@ The middle three keys on each home row side double as modifiers when **held**:
- `hold-trigger-on-release`: allows combining multiple mods on the same hand
- `tapping-term`: 280ms — intentionally large; makes behavior timer-insensitive
- `quick-tap`: 175ms — rapid same-key repeats always produce taps (e.g., `ll`)
- `require-prior-idle`: 150ms — if you typed any key less than 150ms ago, it always types the letter
- `require-prior-idle`: 175ms — if you typed any key less than 175ms ago, it always types the letter

---

Expand Down Expand Up @@ -275,8 +275,8 @@ Located in `config/corne.conf`:

| Setting | Value | Purpose |
|---------|-------|---------|
| Press debounce | 1ms | Near-instant key registration (eager debounce) |
| Release debounce | 5ms | Standard release filtering |
| Press debounce | 5ms | Filters switch bounce while staying responsive |
| Release debounce | 5ms | Symmetric release filtering |
| BT min interval | 6 | Locks BT polling for consistent wireless latency |
| Sleep timeout | 30 min | Deep sleep after inactivity to save battery |

Expand Down
2 changes: 1 addition & 1 deletion config/corne.conf
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Expand Up @@ -18,7 +18,7 @@

CONFIG_ZMK_SLEEP=y
CONFIG_ZMK_IDLE_SLEEP_TIMEOUT=1800000
CONFIG_ZMK_KSCAN_DEBOUNCE_PRESS_MS=1
CONFIG_ZMK_KSCAN_DEBOUNCE_PRESS_MS=5
CONFIG_ZMK_KSCAN_DEBOUNCE_RELEASE_MS=5
CONFIG_BT_PERIPHERAL_PREF_MIN_INT=6
CONFIG_BT_PERIPHERAL_PREF_MAX_INT=6
Expand Down
27 changes: 20 additions & 7 deletions config/corne.keymap
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Expand Up @@ -38,12 +38,12 @@
// - hold-trigger-on-release: allows combining mods on same hand, prevents rolling misfires
// - 280ms tapping-term: large value makes behavior timer-insensitive
// - 175ms quick-tap: rapid same-key repeats always produce taps
// - 150ms require-prior-idle: eliminates delay during fast typing
// - 175ms require-prior-idle: eliminates HRM misfires during fast typing
ZMK_BEHAVIOR(hml, hold_tap, // left-hand HRMs
flavor = "balanced";
tapping-term-ms = <280>;
quick-tap-ms = <175>;
require-prior-idle-ms = <150>;
require-prior-idle-ms = <175>;
bindings = <&kp>, <&kp>;
hold-trigger-key-positions = <KEYS_R THUMBS>;
hold-trigger-on-release;
Expand All @@ -53,12 +53,25 @@ ZMK_BEHAVIOR(hmr, hold_tap, // right-hand HRMs
flavor = "balanced";
tapping-term-ms = <280>;
quick-tap-ms = <175>;
require-prior-idle-ms = <150>;
require-prior-idle-ms = <175>;
bindings = <&kp>, <&kp>;
hold-trigger-key-positions = <KEYS_L THUMBS>;
hold-trigger-on-release;
)

// Layer-taps with timeless settings (prevents accidental layer activation during fast typing)
// Same approach as HRMs: require-prior-idle prevents misfires, balanced flavor
// ensures layer only activates on deliberate hold + opposite-hand keypress
ZMK_BEHAVIOR(ltl, hold_tap, // left-hand layer-taps (E/NAV, R/WIN, B/FUNC)
flavor = "balanced";
tapping-term-ms = <280>;
quick-tap-ms = <175>;
require-prior-idle-ms = <175>;
bindings = <&mo>, <&kp>;
hold-trigger-key-positions = <KEYS_R THUMBS>;
hold-trigger-on-release;
)


// combos
#undef COMBO_TERM
Expand All @@ -79,13 +92,13 @@ ZMK_LAYER(Main,
// DEFAULT LAYER
// .--------------------------------------------------------------. .-----------------------------------------------------------.
// | ESC | Q | W | E/NAV | R/WIN | T | | Y | U | I | O | P | BKSP |
&kp ESC &kp Q &kp W &lt 3 E &lt 6 R &kp T &kp Y &kp U &kp I &kp O &kp P &kp DEL
&kp ESC &kp Q &kp W &ltl 3 E &ltl 6 R &kp T &kp Y &kp U &kp I &kp O &kp P &kp DEL
// |--------------+---------+--------+--------+---------+---------| |-------+---------+---------+---------+----------+----------|
// | CTRL/Tab | A | S | D | F | G | | H | J | K | L | Ö | Ä |
&mt LCTRL TAB &kp A &hml LALT S &hml LSHIFT D &hml LCTRL F &kp G &kp H &hmr RCTRL J &hmr RSHIFT K &hmr RALT L &kp SEMI &kp LBKT
// |--------------+---------+--------+--------+---------+---------| |-------+---------+---------+---------+----------+----------|
// | SHFT | Z | X | C | V | B/FUNC | | N | M | . | , | | Ä |
&kp LSHIFT &kp Z &kp X &kp C &kp V &lt 5 B &kp N &kp M &kp DOT &kp COMMA ___ &kp SQT
&kp LSHIFT &kp Z &kp X &kp C &kp V &ltl 5 B &kp N &kp M &kp DOT &kp COMMA ___ &kp SQT
// '---------------------------------+--------+---------+---------+ |-------+---------+---------+-------------------------------'
// | GUI | NUM | SPC | | ENT | CHARS | BKSP |
&kp LGUI &mo 1 &kp SPACE &kp RET &mo 2 &kp BSPC
Expand Down Expand Up @@ -206,13 +219,13 @@ ZMK_LAYER(Game,
// DEFAULT LAYER
// .--------------------------------------------------------------. .-----------------------------------------------------------.
// | ESC | Q | W | E/NAV | R/NAV | T | | Y | U | I | O | P | BKSP |
&kp ESC &kp Q &kp W &kp E &lt 3 R &kp T &kp Y &kp U &kp I &kp O &kp P &kp DEL
&kp ESC &kp Q &kp W &kp E &ltl 3 R &kp T &kp Y &kp U &kp I &kp O &kp P &kp DEL
// |--------------+---------+--------+--------+---------+---------| |-------+---------+---------+---------+----------+----------|
// | CTRL/Tab | A | S | D | F | G | | H | J | K | L | Ö | Ä |
&mt LCTRL TAB &kp A &kp S &kp D &kp F &kp G &kp H &hmr RCTRL J &hmr RSHIFT K &hmr RALT L &kp SEMI &kp LBKT
// |--------------+---------+--------+--------+---------+---------| |-------+---------+---------+---------+----------+----------|
// | SHFT | Z | X | C | V | B/FUNC | | N | M | . | , | | Ä |
&kp LSHIFT &kp Z &kp X &kp C &kp V &lt 5 B &kp N &kp M &kp DOT &kp COMMA ___ &kp SQT
&kp LSHIFT &kp Z &kp X &kp C &kp V &ltl 5 B &kp N &kp M &kp DOT &kp COMMA ___ &kp SQT
// '---------------------------------+--------+---------+---------+ |-------+---------+---------+-------------------------------'
// | GUI | NUM | SPC | | ENT | CHARS | BKSP |
&kp LGUI &mo 1 &kp SPACE &kp RET &mo 2 &kp BSPC
Expand Down
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