SCENE CONTROL
Brightness is limited to the tested 50% ceiling. Pattern selections and slider changes apply live; Save keeps your scene on the jar.
No scene received yet.
MONDAY ONLINE · HAPPY JARZ / BLOOMCORE
WE GOIN’
FULL BLOOM.
“Glass full of stars. Clipboard full of chaos. Let’s light this thing.”
Handmade happiness, tiny games, and your very own little glow.
Checking USB support…
YOUR HOSTMON
DAY!GLITTER / CHAOS / HEART✦
DAY!GLITTER / CHAOS / HEART✦
MONDAY’S CORNER · ART + MUSIC ↗
TINY JUKEBOX
Monday’s HAPPY JARZ mix
Listen on Suno ↗THE GLITTER WALL
You can explore and create artwork without a jar. To control your jar, plug it into your Windows PC and connect using Microsoft Edge. Firmware installation is not available yet.
First time? Set up your Happy Jarz
- Plug your Happy Jarz into your Windows PC using a USB data cable.
- Open jarz.spiralside.com in Microsoft Edge.
- Click Connect jar at the top.
- Select your jar's serial device in the browser popup and click Connect.
You're ready! Jar controls unlock after connecting. You can make artwork without connecting anything. If the jar doesn't appear, check power, try another USB data cable, and close other apps using the jar.
LIGHTS + CONTROL
Your jar, live.
GAMEPAD INPUT
Live touch / USB state.
Nine touch pads: Up/Down/Left/Right, A/B, L/R and Start. L lowers brightness and R raises it in 5% steps (firmware 0.18.6+). Start reports a button press; mode selection is not implemented yet. Hover or focus a button for its GPIO assignment.
Live readings start when the jar connects. Controls stay disabled until your jar advertises them.
HAPPY JARZ MINI
Live OLED + app gamepad.
Connect your HAPPY JARZ to get started.
Battery —
Buttons use the jar's normal input path. A selects; B goes back. Extra keys only activate when advertised by the board.
Host controls off
Keyboard: arrows, Z=A, X=B, A=X, S=Y, Q=L, W=R, Enter=START, Shift=SELECT. Host input works only on this tab while the page is focused, and pauses while typing.
THIS JAR IS YOURS
Hello, birthday person.
Connect a jar to identify its profile.
Profiles are saved on the jar.
Name: up to 32 UTF-8 bytes. Birthday is optional; no birth year is needed. Saving profile only leaves the clock unchanged. Name and birthday stay on the jar and are redacted from support logs. This browser does not keep a separate profile database.
YOUR DAY IS COMING
Birthday countdown.
Add a birthday to start the countdown.
Saved on this jar
No profile reading yet.
Jar’s local clock
No clock reading yet.
On your birthday, the jar celebrates all day with OLED animations and gentle light changes. The greeting follows its local date. February 29 birthdays celebrate on March 1 in non-leap years.
The saved birthday countdown appears briefly at startup or when the accessory power switch wakes the screen, when the jar clock is set. Full power loss may need another clock sync. Current firmware supports the four US zones listed and UTC; more regions need a firmware update.
TWO FRAMES. ENDLESS LITTLE IDEAS.
Draw something happy.
Draw on the 128 × 64 canvas. Two frames animate on the jar. You can keep up to 50 pictures there.
108 pixel stamps + emoji
Sending replaces only the selected slot. Your drawing is saved automatically in this browser and survives closing or reloading this tab. Download a backup to move it to another PC.
Artwork saves automatically in this browser.
THE JAR'S NETWORK
Find your signal.
Not scanned yet.
No reading yet.
Use a password-protected 2.4 GHz network. Credentials are saved on the jar and redacted from logs. Scanning can interrupt a connection attempt. Open networks and captive-portal sign-in are not supported by this setup.
RIGHT TIME. RIGHT DAY.
Keep your clock.
Clock —
USB sync needs no Wi-Fi. Internet sync needs the jar connected to Wi-Fi; read the clock afterward to check it. The board currently supports these four US zones and UTC. Full power loss may require another sync. Birthday celebrations and alarms use the jar's local date and time.
A LITTLE REMINDER
Daily alarm.
Alarm —
Uses the jar's local clock. Set the clock before enabling an alarm.
LIGHTS OUT, ON YOUR TERMS
Auto-off timer.
Timer —
1 minute to 7 days. Remaining time is a board reading; refresh to update it.
Schedule —
TINY SCREEN. BIG PERSONALITY.
Your little universe.
No screen received yet.
Display —
Screensaver —
OLED brightness is fixed at 100%. The board controls idle timing. ART rotates your saved drawings; two-frame pictures animate. Add pictures in the Art tab.
SIX PADS. ALL YOURS.
Touch + control.
Up / Down / Left / Right / A / B. A selects; B goes back; hold physical B to return home.
Input mode —
No board press reported this session.
Waiting for touch readings.
No calibration reading yet.
Readings are raw touch values, not button presses. Recalibration requires fingers off every pad. Use the Lights + Control console for keyboard/gamepad input; Service records test results.
WORDS FOR THE LITTLE SCREEN
Marquee messages.
CUSTOM falls back to built-in sayings when no custom messages are saved. Each slot accepts 96 UTF-8 bytes. Names and messages are redacted from diagnostic exports.
Load your messages before editing.
Edit one slot
SERVICE + SUPPORT
Tell us what happened.
Read the jar, run a test, then download a support report. It includes timestamped errors, USB/browser details, recent readouts and test results. Nothing is sent automatically.
RGB briefly changes the lamps. Calibration resets touch baselines: keep fingers off every pad. A firmware PASS means the routine completed; confirm the physical result below.
Read one thing
Fuel gauge
Sensor —BATTERY ESTIMATE
VOLTAGE
USB DATA
CHARGE
ADC
No power reading yet.
Battery percentage is estimated from voltage. Charging/full is shown by the charger’s hardware LED; current firmware does not measure it. USB DATA means the board reports USB data presence, not a charging measurement.
Test results
No tests run yet.
Your observations
Passwords, profile names/birthdays and Wi-Fi network/IP fields are removed from logs. Board ID and your written notes are included in reports. Logs are stored locally when the browser allows it; older entries are dropped at the displayed limit.
NEXT ADVENTURE
Bloopetz.
This panel is reserved for the upcoming pet system on the web app and board. Pet commands and gameplay are not implemented yet.
NEXT ADVENTURE
DND.
This panel is reserved for the upcoming DND features on the web app and board. Rules, controls and board commands will be designed together.
KEEP THE JOY CURRENT
A clear path to updates.
Checking release information…
- Identify the exact jar model.
- Download and validate a tested release.
- Preserve your profile and artwork.
- Show progress while installing.
- Reconnect and verify the new version.
Firmware installation is not yet available. Nothing here flashes, erases, or automatically updates your board.
Project and build instructions ↗