By name: bin_test description: BIN resistance level test tool for verifying that the LED current of the DUT matches the BIN resistance level. Depends on device-control skill for programmable resistor and power supply control. Uses headlight configuration for "LB/HB" queries and signal LED configuration (64 channels, current x64) for "TI/DRL/PL" queries.
BIN Test Skill
This skill executes BIN resistance level testing to verify that the LED output current of the Device Under Test (DUT) matches the BIN resistance levels.
Workflow
- Connection Check - Ensure programmable resistor and power supply are connected
- Set BIN Resistance - Configure programmable resistor value using
@programmable-resistorskill - Power Cycle DUT - Cycle power using
@power-supplyskill to apply the new resistance value - Measure Current - Use
@oscilloscopeskill to read LED output current average from channel 4 - Result Validation - Check if current is within ±5% tolerance
Device Control (via device-control skill)
All device operations should use the corresponding device-control sub-skills:
| Operation | Skill to Use |
|---|---|
| Set BIN resistance | @programmable-resistor |
| Power on/off DUT | @power-supply |
| Measure current (CH4) | @oscilloscope |
LED Type Recognition
Automatically selects configuration file based on user input:
| Keyword | LED Type | Config File | Current Multiplier |
|---|---|---|---|
| LB, HB | Headlight | bin_res_lbhb.txt |
1x |
| TI, DRL, PL | Signal LED | bin_res_sigled.txt |
64x |
- Headlight: Single channel current configuration
- Signal LED: 64 channels, theoretical current automatically multiplied by 64
Usage
Quick Start
Run the automated test script:
python3 ~/.claude/skills/bin_test/scripts/run_bin_test.py
The script will prompt for:
- Device serial port confirmation
- LED type auto-detection (auto-selected when user says LB/HB/TI/DRL/PL)
- List of levels to test
- Power supply voltage
Manual Single Level Test
Use device-control skills for device operations:
# 1. Set BIN resistance (use @programmable-resistor skill)
# Skill: programmable-resistor
# Scripts: ~/.claude/skills/programmable-resistor/scripts/res_ctrl/
# Command: cd ~/.claude/skills/programmable-resistor/scripts/res_ctrl/ && uv run resistance_cli.py -p /dev/ttyUSB0 -v 10000
# 2. Power cycle (use @power-supply skill)
# Skill: power-supply
# Scripts: ~/.claude/skills/power-supply/scripts/power_ctrl/
# Command: cd ~/.claude/skills/power-supply/scripts/power_ctrl/ && uv run power_ctrl_cli.py -v 13.5 -o on
# Wait 2 seconds, then: uv run power_ctrl_cli.py -o off
# 3. Measure current (use @oscilloscope skill)
# Skill: oscilloscope
# Scripts: ~/.claude/skills/oscilloscope/scripts/yokogawa/
# Command: cd ~/.claude/skills/oscilloscope/scripts/yokogawa/ && uv run yokogawa_pyvisa.py mean -c 4
Configuration Files
| Directory | Purpose |
|---|---|
~/.claude/skills/bin_test/config/ |
BIN configuration files (bin_res_lbhb.txt, etc.) |
~/.claude/skills/bin_test/result/ |
Test results (bin_test_result_*.csv) |
Note: Legacy files in ~/test_script/res_ctrl/ are still supported for backward compatibility.
Format: typical:min:max;theoretical_current
Example:
# Headlight
638:526:752;700
# Signal LED (64 channels)
2500:2450:2550;30 # Actual expected current 30x64=1920mA
Dependent Devices
This skill depends on device-control skill for all device operations:
| Device | Purpose | Skill to Use |
|---|---|---|
| Programmable Resistor (RM550) | Set BIN resistance value | @programmable-resistor |
| Programmable Power Supply | Power the DUT, supports power cycling | @power-supply |
| Yokogawa Oscilloscope CH4 | Measure LED output current average | @oscilloscope |
Device Connection Check
Before running the test, ensure devices are connected to WSL.
Step 1: Check USBIPD Status on Windows
Run this command in WSL to check device binding status:
pwsh.exe -c "usbipd list"
Expected output shows device states:
- Shared: Device is bound but not attached to WSL
- Not shared: Device needs to be bound first
- Persisted: Device is remembered for automatic binding
Typical devices:
| Device | Type |
|---|---|
| DLM series (Yokogawa) | Oscilloscope |
| USB-SERIAL CH340 | Programmable Resistor |
| USB Test and Measurement Device | Power Supply (ITECH) |
Step 2: Attach Devices to WSL
If devices show Shared but not attached, run in Windows PowerShell:
# Attach oscilloscope
pwsh.exe -c "usbipd attach --wsl --busid <BUSID>"
# Attach programmable resistor
pwsh.exe -c "usbipd attach --wsl --busid <BUSID>"
If devices show Not shared, first bind them:
# Bind device (run as Administrator)
usbipd bind --busid <BUSID>
# Then attach to WSL
pwsh.exe -c "usbipd attach --wsl --busid <BUSID>"
Step 3: Verify Connection in WSL
After attaching, verify devices are accessible:
# List USB devices (should show RM550, Yokogawa, etc.)
lsusb
# Check serial devices (Programmable Resistor)
ls /dev/ttyUSB*
# List VISA resources (Power Supply, Oscilloscope)
cd ~/.claude/skills/power-supply/scripts/power_ctrl && uv run power_ctrl_cli -l"
If devices are still not detected, use the @device-control skill for troubleshooting.
Test Results
Results are automatically saved to ~/.claude/skills/bin_test/result/bin_test_result_YYYYMMDD_HHMMSS.csv
Note: Results are saved in the skill's result directory.
CSV Format:
# Time: 2025-02-03 14:30:00
# LED Type: Headlight
# Test Levels: BIN_LEVEL_1, BIN_LEVEL_2
# Passed: 5/6
Level,Type,Resistance(Ω),Expected(mA),Measured(mA),Result,Error(%)
BIN_LEVEL_1,Typical,638,700,695.2,Pass,-0.69
BIN_LEVEL_1,Min,526,700,702.1,Pass,0.30
BIN_LEVEL_1,Max,752,700,Fail,0.0
...
Total,,,5/6,83.3%
Key Features
- BIN resistance is read at power-on only: Resistance changes during operation are ineffective; power cycling is required
- Each level tests 3 resistance values: Typical, Minimum, Maximum
- ±5% tolerance range: Current passes if within ±5% of expected value
- Auto-save results: CSV format for easy analysis