Circuit Biscuits
Circuit Biscuits Workshop

Dashboard

Use this colourful control room to explore your circuit, try sensors, send commands, animate displays, and see what your tiny gadget is doing in real time.

Status
Idle
Connection
Disconnected
Last Update
—
Mode
Unknown
Error Code
—
Detail
—
User
Not logged in
Saved Work
Layouts, pixels, RGB, and automation
Log in to save this dashboard.

Dashboard Help

📖 Docs
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⋮⋮ Move Panel
▶ Set Mode / Run
■ Stop
⏸ Pause
📖 Open Notes

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LED

📖 2 DEV MCU

Clock

Time—

Text

Text—

LED Matrix

MAX7219
Pixel Art Editor 8 x 32 manual bitmap
Brightness Auto
Animation Builder
8
Preview in Browser Preview the frames locally on browser.
Run on Device Read copies the device animation into the editor. Send uploads to device RAM and saves to flash. Play starts, Pause holds the current frame, and Stop ends playback.
No animation frames yet. Draw a bitmap, then add it as frame 1.
📖 4 DEV MAX

RGB Matrix

WS2812 8x8
Selected #ff3366
RGB Animation Builder 8 x 8 colour frames
Preview and Stream Preview in the browser, or stream frames to the WS2812 panel.
No RGB frames yet. Paint the panel, then add frame 1.
DEV RGB BB RGB

Gyroscope & Accelerometer

MPU6050
Pitch
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Roll
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Yaw
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📖 6 DEV IMU

Sonar

HC-SR04
Forward Distance —
Near Front of device Far
Range
—
📖 5 DEV SON

Automation

Example Routines
Expression Help
Use plain expressions throughout automation. Quote string literals in actions.
Variablesdistance_cm, pitch, roll, yaw, mode_number, mode_name, error_code, time_hour, time_minute, time_second, time_hhmm, display_text, display_text_length, scroll_mode, animation_current_frame, animation_frame_count, animation_interval_ms, animation_playing, bluetooth_name, bluetooth_uart_baud, elapsed_ms
Helpersclamp, round, floor, ceil, abs, min, max, int
Condition expressions
abs(pitch)
roll
distance_cm / 10
mode_name
pitch > roll
Action expressions
DISPLAY_ANIMATION_FRAME {{ clamp(round(distance_cm / 10), 0, 7) }}
P {pitch} R {roll}
{mode_name}
HELLO {bluetooth_name}
Distance—
Pitch—
Roll—
Yaw—
Mode—
Text—
Frame—
Automation Routine Add blocks, watch live values, then run or step through.
Run in Browser Edit, simulate, and save the full routine in the app.
No automation steps yet. Add an action, wait, condition, or while loop block.
Run On Device Upload the firmware-safe Action and Wait subset to the board and manage flash storage.
Device automation supports Action and Wait steps only. Upload sends the firmware-safe subset to the board.

Live Feed

Feed Text—
Feed StatusIdle
Use a CORS-friendly JSON endpoint, or a YouTube public channel feed like https://www.youtube.com/feeds/videos.xml?channel_id=.... Expressions can use returned values directly, for example current.temperature_2m, bitcoin.usd, or latest_title.

Command Tools

Reference

Click a command name to fill the Raw Command box. Bitmap rows use eight uppercase hexadecimal values, one per display row. Animation frame indexes start at 0.

Raw Input

Output Log
📖 3 DEV USB DEV BT