.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;} .ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px solid #ccc;} .ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;} .ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;} .ut-cat p{margin:.6em 0;} .ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;} .ut-cat img{max-width:100%;height:auto;} .ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;} .ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;} .ut-cat td strong{color:#222;} Overview The MSO5000HD-1WIRE adds 1-Wire protocol triggering, decoding, and search to your MSO5000HD Series oscilloscope — for temperature sensors (DS18B20), iButton devices, EEPROMs, and battery fuel gauges. Single-wire bidirectional bus where timing is critical. Decodes reset pulses, presence detection, ROM commands, and data bytes on the waveform. The option is enabled by a software license keyed to the oscilloscope's serial number and is permanent for the life of the instrument. Key Features 1-Wire Triggering — Trigger on reset/presence sequences, ROM commands, or data bytes. Real-Time Decoding — Decoded transactions with reset, presence, command, and data fields labeled. Timing Verification — Read/write slot timing for specification compliance checking. ROM ID Display — Shows 64-bit ROM IDs for device identification and enumeration. Lifetime License Activation — activate once, owned for the life of the instrument. No subscriptions, no renewals, no maintenance fees. When You Need This Option The option fits the following workflows: Temperature Sensor Debug — DS18B20 fails to respond intermittently. Decode to verify reset/presence timing and parasitic power. Device Enumeration — Search algorithm not finding all devices. Decode ROM search commands to find where enumeration diverges. Compatibility This option is compatible with all MSO5000HD Series oscilloscopes: MSO5034HD (350 MHz), MSO5054HD (500 MHz), and MSO5104HD (1 GHz). Frequently Asked Questions Should I buy this individually or get a bundle? If you only need 1-Wire, the individual license covers exactly that protocol. The BND bundle includes every protocol in the series. How is this option activated? The option is enabled by a software license keyed to the oscilloscope's serial number. After purchase, the license is registered on the UNI-T website to generate the license file, which is then loaded onto the instrument from a USB drive through the option-install menu. Refer to the oscilloscope's user manual for the step-by-step procedure. Is the license permanent, or does it require renewal? The license is permanent — a one-time purchase that stays active for the life of the instrument. No subscriptions, no annual renewals, and no expiration.