sml_descriptor.tc¶
sml_descriptor.tc — SML descriptor + pin management helpers
// ============================================================================
// sml_descriptor.tc — SML descriptor + pin management helpers
// ============================================================================
//
// Shared building block for any TinyC script that needs to expose the
// "pick a meter / pick the pins / toggle the filter / restart the driver"
// settings panel. Used by:
// * sml_simple.tc — readings only
// * sml_chart_common.tc — base for the chart family (sml_chart,
// sml_chart_pv, sml_chart_bezug, …)
// * sml_water.tc — m³ counter
// * sml_chart_modbus.tc — pins / activ still apply, descriptor is
// skipped at runtime but UI is identical
//
// Exposes:
// - persist watch state (5 vars)
// - sml_descriptor_apply() call from EverySecond
// - sml_render_settings_panel() call from WebUI to draw the styled box
//
// No callbacks / no main() here — the including script wires these.
// ============================================================================
// ── Persisted descriptor settings ───────────────────────────────────────────
persist watch int sml_meter_sel;
persist watch int sml_rx_pin;
persist watch int sml_tx_pin;
persist watch int sml_filter; // 0 = raw, 1 = on → smlf=16 in descriptor
persist watch int sml_activ; // mirrors tasm_rule bit 0
// ── Shared sprintf scratch (also used by chart/totals renderers) ────────────
char sml_buf[160];
// ============================================================================
// Change-detect + re-apply: descriptor / pins / filter / activ.
// Idempotent: zero file IO when nothing changed; smlApplyPins itself
// only rewrites /sml_meter.def when a substituted value differs.
// ============================================================================
void sml_descriptor_apply() {
int meter_changed = changed(sml_meter_sel);
int pins_changed = changed(sml_rx_pin) || changed(sml_tx_pin);
int filter_changed = changed(sml_filter);
int activ_changed = changed(sml_activ);
if (activ_changed) {
tasm_rule = sml_activ;
snapshot(sml_activ);
}
if (meter_changed || pins_changed || filter_changed || activ_changed) {
if (sml_rx_pin >= 0 || sml_tx_pin >= 0) {
int filter_val = sml_filter ? 16 : 0;
smlApplyPins("/sml_meter.def", sml_rx_pin, sml_tx_pin, filter_val);
}
snapshot(sml_rx_pin);
snapshot(sml_tx_pin);
snapshot(sml_filter);
tasmCmd("Sensor53 r", sml_buf);
// Persist the new pins/filter/activ NOW. TinyC only auto-saves persist
// vars at slot-stop; a main()-only SML slot (sml_simple / deye / charts)
// stops right after main(), so a UI pin/activ change made while it runs
// would otherwise never reach flash and be lost on the next reboot
// (slot would come back with -1/-1 pins and SML deactivated).
saveVars();
}
if (meter_changed) {
snapshot(sml_meter_sel);
smlScripterLoad("/sml_meter.def");
}
}
// ============================================================================
// Settings panel — uptime + descriptor picker + pin pulldowns + filter
// toggle + edit-descriptor link. The styled <div class='sml-p'> is opened
// here and LEFT OPEN — callers add their own buttons / footer / sections
// then close the div with `</div>` themselves.
// ============================================================================
void sml_render_settings_panel() {
webSend("<style>.sml-p{max-width:340px;margin:12px auto;background:#f0f0f0;color:#000;padding:16px;border:2px solid #ccc;border-radius:6px;text-align:left}.sml-p h3{margin:0 0 8px}.sml-p hr{border:0;border-top:1px solid #bbb;margin:12px 0}.sml-p b{display:inline-block;margin-bottom:4px;font-size:13px}.sml-p div{margin:6px 0}.sml-p .hint{font-size:9px;color:#555;line-height:1.4}</style>");
webSend("<div class='sml-p'><h3>⚡ SML Zaehler</h3>");
int up_d = tasm_uptime / 86400;
int up_h = (tasm_uptime / 3600) % 24;
int up_m = (tasm_uptime / 60) % 60;
sprintf(sml_buf, "<div>Uptime: %d d %d h %d min</div>", up_d, up_h, up_m);
webSend(sml_buf);
webCheckbox(sml_activ, "SML Zaehler aktiv");
webSend("📝 <a href='/ufse?file=/sml_meter.def'>Zaehler-Descriptor bearbeiten</a>");
webSend("<hr><b>📦 Descriptor</b>");
webRepoPulldown(sml_meter_sel, "Descriptor aus Repo",
"https://raw.githubusercontent.com/ottelo9/tasmota-sml-script/main/script-list-menu/meters/smartmeter.json",
"smartmeter",
"/sml_meter.def");
webSend("<hr><b>🔌 Pins</b>");
webPulldown(sml_rx_pin, "RX Pin", "@getfreepins");
webPulldown(sml_tx_pin, "TX Pin", "@getfreepins");
webSend("<div class='hint'>RX=3 TX=1: Hichi, Stromleser, LesekopfV32, Wattwaechter<br>RX=5 TX=4: bitShake</div>");
webSend("<hr><b>📊 Median-Filter</b>");
webCheckbox(sml_filter, "Median-Filter aktiv");
}