Examples

226 example programs covering sensors, displays, networking, and device drivers.

Source lives in tasmota/tinyc/examples/. Pre-compiled bytecode is available from the in-device program repository (TinyCChkpt → Download).

Example	Summary
a7105_fsync.tc	a7105_fsync.tc — channel scan using A7105's FSYNC hardware signal.
a7105_gm24g.tc	a7105_gm24g.tc — A7105 receiver template with datasheet-correct
a7105_listen.tc	a7105_listen.tc — background FIFO RX. EveryLoop drains FIFO when packets
a7105_probe.tc	a7105_probe.tc — AMICCOM A7105 alive-check (SPI register R/W round-trip)
a7105_scan.tc	a7105_scan.tc — AMICCOM A7105 RSSI-scan + init for ceiling-lamp sniffer.
ads1115.tc	ADS1115 16-bit 4-Channel ADC Driver
analog_clock.tc	Analog clock with watchface background and dirty-rect hand erase
audio_io.tc	audio_io.tc — simultaneous WAV PLAYBACK + MIC READ from one TinyC app, full-duplex.
benchmark.tc	TinyC VM Benchmark
ble_gatt_explore.tc	ble_gatt_explore.tc — herausfinden, WELCHE Dienste und Merkmale ein BLE-Geraet hat.
ble_scan.tc	ble_scan.tc — BLE advertisement scanner for TinyC.
ble_server.tc	ble_server.tc — TinyC BLE GATT server (peripheral / "device-as-peripheral").
ble_spp_probe.tc	ble_spp_probe.tc — Verbindungsprobe fuer eine DAUERHAFTE BLE-Verbindung ("BLE SPP").
blib_crc_demo.tc	blib_crc_demo.tc — exercise xblib_01_crc via bcall().
blink.tc	Blink LED on pin 8 (classic Arduino blink)
bme280.tc	BME280 Temperature, Humidity & Pressure Sensor Driver
bmp280.tc	BMP280 Temperature & Pressure Sensor Driver
bmx280.tc	BMx280 / BME68x Temperature, Pressure, Humidity & Gas Sensor Driver
bresser_chart.tc	Bresser Weather Station + 24h Google Charts (CC1101 868 MHz)
c_extensions_demo.tc	c_extensions_demo.tc
callback_test.tc	callback_test.tc — regression test for the callback dispatch cache
callbacks.tc	Callback functions — Tasmota integration
cam_view.tc	cam_view.tc — draw a small LIVE camera picture on the ESP32-P4 DSI screen.
cam_view_lvgl.tc	cam_view_lvgl.tc — live ESP32-P4 camera on the LVGL screen, with ROTATION + sizing.
camera.tc	ESP32 Camera — TinyC direct esp_camera driver
can_sniffer.tc	CAN bus sniffer — empfängt alle Frames auf dem Bus und loggt sie
ccs811.tc	CCS811 Digital Air Quality Sensor (eCO2 + TVOC)
chart.tc	Google Line Chart — 1000 data points stored in array
chart_types.tc	Chart Types Demo — shows all supported WebChart types
clock_7seg.tc	clock_7seg.tc — big 7-segment HH:MM wall clock, multiplexed with fastMux().
clock_header.tc	clock_header.tc — reusable WebUI clock header
core2_energy.tc	Core2 Energy Monitoring System — PHASE 5: global keyword
crypto_test.tc	crypto_test.tc — sanity-check the AES + SHA syscalls (TinyC ≥ 1.3.20)
daikin_control.tc	daikin_control.tc — dedicated controller for Daikin WiFi A/C units
device_scanner.tc	device_scanner.tc — home Tasmota fleet health monitor (v2: auto-discovery).
deye.tc	deye.tc — Rolf's Deye hybrid-inverter Modbus reader (.198) + go-e wallbox
display_demo.tc	Sensor Dashboard for ILI9488 (480x320)
dmx_dimmer_panel.tc	dmx_dimmer_panel.tc — minimal DMX512 test panel.
dummy5.tc	Dummy slot 4 driver — test 5th VM autoexec without serial
dyson_tp02.tc	dyson_tp02.tc — local control of a Dyson Pure Cool Link (Tower TP02 / Desk DP01 …)
dysv17f.tc	DY-SV17F MP3 Player Driver (Serial TX)
ebus_clock_write.tc	ebus_clock_write.tc — .39 eBUS active-master WRITE test (Mac<->.39 UART harness).
ecotracker.tc	EcoTracker Emulator — Marstek, Hoymiles, Jackery, NOAH
ecotracker_emu.tc	ecotracker_emu.tc — minimaler EcoTracker-Emulator zum EINBINDEN
ecotracker_shelly_emu.tc	Unified PV-battery meter emulator — EcoTracker + Shelly Pro 3EM
editor.tc	TinyC - Hello World
energy_dashboard.tc	energy_dashboard.tc — house-wide energy / climate dashboard
energy_logger.tc	energy_logger.tc — stand-in SD logger for the Energy_Manager (.61)
epaper29.tc	EPaper 2.9" Display Controller & Data Logger
epaper42.tc	epaper42.tc — 4.2" e-paper full-house dashboard.
epaper_clock_test.tc	epaper_clock_test.tc — minimal partial-update repro for EPD 2.9"
epd_compare_test.tc	E-Paper A/B Visual Comparison Test (PORTRAIT 128 x 296)
epd_ssd1680_test.tc	SSD1680 3-wire SPI test driver (Waveshare 2.9" v2, 128x296)
eqmax_alarm.tc	eqmax_alarm.tc — house alarm derived from the EqMAX / Moritz (CC1101 MAX!)
esf37_probe.tc	esf37_probe.tc — GATT subscribe-notify probe for the Etekcity ESF37 scale
esf37_scale.tc	esf37_scale.tc — read the Etekcity ESF37 body-composition scale over BLE (plaintext)
esf37_speak.tc	esf37_speak.tc — Etekcity ESF37 BLE scale → SPEAK the weight in German (picotts).
fast_mux.tc	fast_mux.tc — HW-timer GPIO multiplexer (ported from Scripter's ESP32_FAST_MUX).
fibonacci.tc	Fibonacci sequence calculator
file_io.tc	File I/O demo — write and read back
gchart_demo.tc	gchart_demo.tc — Google-Charts-style dual-axis dashboard on LVGL (P4 playground)
globals_toctou_soak.tc	globals_toctou_soak.tc — stress the UDP-global receive path (the
gm24g_lamp.tc	gm24g_lamp.tc — GM2.4G-Deckenlampe steuern (nRF24L01 als LT8900-Ersatz)
gpio_sweep.tc	GPIO sweep — togglt jeden freien ESP32-C3 GPIO der Reihe nach,
gpio_toggle_test.tc	GPIO toggle diagnostic — togglt einen Pin im 1-Hz-Takt (500ms HIGH / 500ms LOW)
growatt.tc	growatt.tc — gemu's Growatt-inverter Modbus reader + feed-in control
growatt_shine.tc	growatt_shine.tc — per-tracker (PV1/PV2) monitor for Growatt inverters via
gtest_r.tc	gtest_r.tc — declare + READ the shared global gdup (never writes it).
gtest_w.tc	gtest_w.tc — declare + WRITE the shared global gdup.
gtls_atmp.tc	gtls_atmp.tc — REPRO: a TLS-using script (heavy BearSSL buffer, like Powerwall/
gtls_noglobal.tc	gtls_noglobal.tc — CONTROL: identical TLS loop, NO global var. Should stay reachable.
guiton_display.tc	guiton_display.tc — LCD Energy Monitor
heating_ds2484.tc	heating_ds2484.tc — Heizungssteuerung über DS2484-1-Wire (Beispiel)
heatpump_map_full.tc	heatpump_map.tc — Modbus-RTU sniffer + control for chinese heat pumps
heatpump_test.tc	heatpump_test.tc — bare-bones heatpump Modbus sniffer (2026-05-11, threaded)
homekit_demo.tc	HomeKit Demo — Temperature sensor + Humidity sensor + Switch
homekit_office.tc	HomeKit Office — Color light + outlet + sensors via UDP
hourly_chime.tc	hourly_chime.tc — play a sound file at the top of every full hour
house_monitor.tc	house_monitor.tc — compact, table-driven house monitor with an LVGL dashboard
hyundai_login.tc	hyundai_login.tc — re-mint the Bluelink refresh token ON-DEVICE via the IDPConnect
hyundai_soc.tc	hyundai_soc.tc — EV state-of-charge from myHyundai/Bluelink, ENTIRELY on the ESP.
igmp_leave_smoke.tc	IGMP-Leave Smoke-Test für den neuen udp(10, mcast_ip) Syscall (TC 1.6.1).
jpg_on_canvas.tc	jpg_on_canvas.tc — compose a JPG + procedural overlay into one canvas,
jpg_view_lvgl.tc	jpg_view_lvgl.tc — show a JPEG FILE from the filesystem on the LVGL screen, rotatable + scalable.
lcd_chart.tc	lcd_chart.tc — 3-Channel Line Chart Demo for TinyC
lcd_i2c.tc	lcd_i2c.tc — I2C LCD Character Display Driver (HD44780 + PCF8574)
ld2410.tc	HLK-LD2410 24GHz mmWave Human Presence Sensor
ledbar.tc	LEDBAR — WS2812 position indicator with IR lamp control
live_chart.tc	Live Moving Line Chart — demonstrates _Q() macro for Google Charts
loudness.tc	loudness.tc — microphone loudness / VU meter using the TinyC I2S mic (RX) syscalls.
loudness_gauge.tc	loudness_gauge.tc — plugin-INDEPENDENT sound I/O demo for the Waveshare ESP32-P4 10.1".
loudness_p4.tc	loudness_p4.tc — mic loudness/VU meter for the Waveshare ESP32-P4 10.1" board.
lt8900_lamp.tc	lt8900_lamp.tc — GaoMei GM2.4G Deckenlampe fernsteuern (LT8900/LT8910)
ltr308.tc	LTR-308ALS-01 Ambient Light Sensor Driver
lvgl_chart.tc	lvgl_chart.tc — LVGL Phase 3 demo (requires firmware with USE_TINYC_LVGL)
lvgl_demo.tc	lvgl_demo.tc — LVGL Phase 1 demo (requires firmware built with USE_TINYC_LVGL)
lvgl_panel.tc	lvgl_panel.tc — a multi-screen LVGL app for TinyC (requires firmware with USE_TINYC_LVGL)
lvgl_smoke.tc	lvgl_smoke.tc — LVGL Phase 0 smoke test (requires firmware built with USE_TINYC_LVGL)
lvgl_widgets.tc	lvgl_widgets.tc — LVGL Phase 2 demo (requires firmware with USE_TINYC_LVGL)
m5_epd47.tc	m5_epd47.tc — M5Paper EPD-47 house dashboard (port of Scripter source)
mail_test.tc	mail_test.tc — minimal SMTP test for debugging the mailSend crash.
marstek_venus.tc	marstek_venus.tc — Marstek Venus E (5.12 kWh) surplus/reserve controller.
matter_airquality.tc	Matter Air Quality sensor — CO2 / PM2.5 / TVOC (Matter 1.4).
matter_battery.tc	Matter battery (Power Source cluster 0x002F, BAT feature) — real battery level.
matter_bridge.tc	Matter Bridge — ONE Matter node exposing MANY devices (pure TinyC).
matter_bridge_ui.tc	matter_bridge_ui.tc — interactive remote-device bridge for matter_c (Berry-style).
matter_button.tc	Matter Generic Switch (stateless programmable button) — uses Matter EVENTS.
matter_fake_sensors.tc	Matter "fake" sensors — surface UNSUPPORTED quantities through SUPPORTED tiles.
matter_fan.tc	Matter Fan — Home controls the speed by WRITING the PercentSetting attribute.
matter_home_alexa.tc	Matter Home — Alexa edition (slimmed bridge).
matter_home_bridge.tc	Matter Home Bridge — TinyC port of the HomeKit "script-3" scripter.
matter_leak.tc	Matter Water-Leak + Rain sensors (BooleanState).
matter_plug.tc	Matter Smart Plug + live Power sensor — defined entirely in TinyC.
matter_powermeter.tc	Matter 1.4 Power + Energy Meter — expose an SML meter over Matter.
matter_remote_bridge.tc	matter_remote_bridge.tc — bridge ANOTHER Tasmota ESP's sensors + actuators
matter_rgb.tc	Matter Smart Plug + RGB Color Light — pure TinyC on an ESP32-C6.
matter_sensors.tc	Matter environmental sensors — Temperature + Humidity + Pressure (pure TinyC).
matter_shutter.tc	Matter Window Covering (roller shutter / blind).
max30102.tc	max30102.tc — Pulsoximeter MAX30102: Puls, SpO2 und eine MITLAUFENDE Kurve im WebUI.
max31855.tc	MAX31855 Thermocouple Sensor Driver (SPI)
meter_pin_unlock.tc	Smart-Meter Optical PIN Unlocker (eHZ / IEC 62056-21 InF)
mic_plugin_level.tc	mic_plugin_level.tc — read the microphone loudness from the audio BinPlugin
mlx90614.tc	MLX90614 Infrared Non-Contact Thermometer Driver
modbus_lib.tc	modbus_lib.tc — Modbus TCP helpers for TinyC (v1.6.0+)
moritz_dash.tc	moritz_dash.tc — LVGL dashboard + integrated house alarm for the MORITZ (CC1101 MAX!) system
multipage_demo.tc	Multi-Page WebUI Demo
music_fft.tc	music_fft.tc — "wrapped FFT" music player: a ring of spectrum bars radiating AROUND
music_ui.tc	music_ui.tc — a TinyC-LVGL "music player" screen, inspired by LVGL's lv_demo_music.
onewire.tc	1-Wire Driver — Temperature Sensors + Output Switches
persist_array_file.tc	persist_array_file.tc — script-managed persistence for arrays that
pool_pump.tc	pool_pump.tc — Tuya local-protocol client for a "Swimming Pool Heat Pump"
power_meter.tc	power_meter.tc — energy-metering smart plug power + consumption charts
powerwall.tc	Powerwall — Tesla Powerwall API access
powerwall_fast.tc	Powerwall (FAST variant) — experimental higher-throughput poll
rgb_led.tc	Onboard RGB LED demo — WS2812/SK6812 driven directly off the RMT peripheral.
rgb_selftest.tc	RGB self-test — drives the SAME pipeline a Matter ColorControl command would:
rsa_test.tc	rsa_test.tc — verify the rsaEncrypt syscall (RSA PKCS#1 v1.5) end-to-end.
scd30.tc	SCD30 CO2/Temperature/Humidity Sensor Driver
sensor_read.tc	Read analog sensor and display via serial
sgp30.tc	SGP30 VOC/eCO2 Sensor Driver
share_dump_test.tc	shareDump() smoke test — TC 1.6.2
share_key_test.tc	share_key_test.tc — verify shareSetFloatKey (runtime char[] key).
share_reader.tc	Slot 1: reads cross-VM share keys written by slot 0 (share_writer.tc).
share_writer.tc	Slot 0: writes counter / kwh / name to the cross-VM share table every second.
sht31.tc	SHT31 Temperature & Humidity Sensor Driver
sht31_publisher.tc	sht31_publisher.tc — SHT31 sensor that publishes to UDP globals
sht31_th.tc	SHT31 Temp & Humidity — tc2plugin PoC test variant (T+H only)
sizeof_demo.tc	sizeof_demo.tc — compile-time sizeof for struct types
slcan_bridge.tc	slcan_bridge.tc — USB-serial ↔ CAN-bus bridge using the SLCAN
slcan_bridge_tcp.tc	slcan_bridge_tcp.tc — SLCAN bridge over TCP (WiFi).
slot0_test.tc	Slot 0 test — Counter A (increments every second)
slot1_test.tc	Slot 1 test — Counter B (increments by 10 every second)
slot2_test.tc	Slot 2 test — Counter C (counts down from 1000)
slot3_test.tc	Slot 3 test — Counter D (toggles 0/1 every second)
sma_speedwire.tc	SMA Home Manager 2.0 Speedwire receiver
sma_sunnyboy.tc	sma_sunnyboy.tc — SMA Sunny Boy ueber Bluetooth Classic auslesen (SMAdata2+ / SPP).
small_chart.tc	small_chart.tc — a compact LVGL line chart for SMALL displays.
sml_card.tc	sml_card.tc — render ANY SML meter's values inside a TinyC slot card
sml_chart.tc	sml_chart.tc — single-meter SML reader with 4h/24h power charts +
sml_chart_bezug.tc	sml_chart_bezug.tc — SML reader for meters with no feed-in counter
sml_chart_common.tc	sml_chart_common.tc — shared chart + descriptor helpers for SML scripts
sml_chart_modbus.tc	sml_chart_modbus.tc — sml_chart_pv + Modbus-TCP slave server
sml_chart_pv.tc	sml_chart_pv.tc — SML reader with PV-production tracking + charts
sml_chart_pv_common.tc	sml_chart_pv_common.tc — PV-production helpers shared by the PV variants
sml_custom_line.tc	sml_custom_line.tc — two SML web-table techniques.
sml_descriptor.tc	sml_descriptor.tc — SML descriptor + pin management helpers
sml_ebus.tc	SML eBus Solar Monitor with 24h and weekly charts
sml_enable.tc	sml_enable.tc — minimal: turn on the SML descriptor gate (Rule1 / tasm_rule).
sml_simple.tc	sml_simple.tc — minimal SML smart-meter reader & descriptor manager
sml_water.tc	sml_water.tc — water-meter (pulse counter, Reed contact / S0) with charts
snap_with_timestamp.tc	snap_with_timestamp.tc
solar_dashboard.tc	solar_dashboard.tc — REAL energy dashboard on LVGL (P4), built on the gchart primitives.
sort.tc	Bubble sort an array of integers
spawn_tasks.tc	spawn_tasks.tc — Dynamic FreeRTOS task spawn demo (ESP32 only)
spp_connect.tc	spp_connect.tc — Verbindungsprobe fuer Bluetooth Classic (SPP).
spp_scan.tc	spp_scan.tc — Bluetooth-Classic-Geraete in der Umgebung suchen.
sprintf_crash_test.tc	Minimal repro for the Exception 29 / tlsf_free NULL crash that
sps30.tc	SPS30 Particulate Matter Sensor Driver
str_ternary_test.tc	str_ternary_test.tc — verify cond ? "a" : "b" as a string argument (new codegen).
strings.tc	String operations with char arrays
structs_demo.tc	structs_demo.tc — practical struct patterns (TinyC 1.4.0+)
sunton_display.tc	Sunton 800x480 RGB Display — Home Energy Dashboard
tcs34725.tc	TCS34725 RGB Color Sensor Driver
test_2d.tc	test_2d.tc — Phase 1 2D-char-array smoke test
test_2d_phase2.tc	test_2d_phase2.tc — Phase 2 additions over Phase 1
test_fnptrs_v1.tc	test_fnptrs_v1.tc — function pointers v1 (Phase B) probe
test_fnptrs_v2.tc	test_fnptrs_v2.tc — fn-ptrs as struct fields (Phase B v2 probe)
test_refparams_v1.tc	test_refparams_v1.tc — reference parameters (Phase A v1) probe
test_strings_v15.tc	test_strings_v15.tc — TinyC 1.5.0 string-ops probe
test_structs_v1.tc	test_structs_v1.tc — probe what works in the IDE's existing struct
text_on_image.tc	text_on_image.tc — Flicker-free text overlay on JPEG background
tinyui_dashboard.tc	tinyui_dashboard.tc — polished 3-screen dashboard, TinyUI aesthetics showcase
tinyui_demo.tc	tinyui_demo.tc — demo of the TinyUI retained-mode widget layer
tls_test.tc	tls_test.tc — verify the raw TLS syscalls end-to-end: GET https://example.com/
touch_buttons.tc	Touch Button & Slider Demo
touch_coords.tc	touch_coords.tc — live touch coordinates on the LVGL screen.
touch_coords_legacy.tc	touch_coords_legacy.tc — live touch coordinates using the LEGACY (non-LVGL) display API.
tuya_pool_heater.tc	tuya_pool_heater.tc — Tuya v3.3 local-protocol client in TinyC
uart_tx_test.tc	UART TX continuous burst test for oscilloscope verification.
udp.tc	UDP multicast — share float variables between devices
variograf_ekg.tc	variograf_ekg.tc — EKG eines Variograf-Rekorders ueber BLE, 256 Hz.
veml6075.tc	VEML6075 UV Light Sensor Driver
vesync_scale_sniff.tc	vesync_scale_sniff.tc — does the Etekcity ESF37 broadcast weight in its advertisement?
vl53l0x.tc	vl53l0x.tc — VL53L0X Time-of-Flight distance sensor driver
voltmeter.tc	voltmeter.tc — procedurally-drawn analog voltmeter with dirty-rect needle
voltmeter2.tc	voltmeter2.tc — smooth-sweep analog gauge using the TinyC canvas API.
voltmeter_multi.tc	voltmeter_multi.tc — three gauges on one screen, driven by struct + array
wallbox_charge.tc	wallbox_charge.tc — PV-surplus charging control for an ON/OFF wallbox at .146.
watch_demo.tc	Watch Variables Demo
watch_renaissance.tc	watch_renaissance.tc — analog "Waldhoff Renaissance" watchface for a 240x240 screen.
wav_diag.tc	wav_diag.tc — diagnose the ES8311 DAC playback path on the P4. Console: WDGO to play,
wav_player.tc	WAV Player — plugin-independent I2S audio output, selectable codec.
wav_ram.tc	wav_ram.tc — load doorbell16.wav into RAM, then play from RAM (no SD reads during
wav_rd.tc	wav_rd.tc — READ-ONLY WAV diagnostic (no audio). Console: RD
wd_logger.tc	wd_logger.tc — indoor air-quality logger, TinyC port of the Tasmota Scripter "wd".
weather.tc	weather.tc — 16-day weather + solar-yield + wind forecast from Open-Meteo (FREE, no key)
web_buttons.tc	web_buttons.tc — Custom Web Buttons Demo
web_handler.tc	Custom Web Handler Demo
webcall_demo.tc	WebCall Demo — Widgets on the Tasmota main page
webcam.tc	Webcam Security Camera Script
webcam_tinyc.tc	webcam_tinyc.tc — Security Camera using TinyC integrated cam driver
webradio.tc	webradio.tc — Internet-radio player for an I2S audio board.
webui_demo.tc	WebUI Demo — Smart Relay Controller
webui_dynamic.tc	webui_dynamic.tc — demo of the TinyC dynamic-HTML enablers (1.6.31).
webui_watchdog.tc	webui_watchdog.tc — auto-recover from the "Tasmota WebUI dies but
worker_vm_test.tc	worker_vm_test.tc — exercise USE_TINYC_WORKER_VM (Option 2, dual execution context)