Interface and supply, by model
What you actually have to wire: interface class, the manufacturer's own wording, supply and mass for every model that publishes them. Use it to cut a shortlist before you ask for protocol documents.
Distribution
| Interface class | Models |
|---|---|
| UART-TTL | 34 |
| RS-422 | 6 |
| (not published) | 4 |
| UART + RS-422 | 3 |
The table
| Model | Class | As published | Supply | Mass |
|---|---|---|---|---|
| LR1000D23 | UART-TTL | UART-TTL, customizable | 3.3 V – 5 V (recommended supply voltage ≥ 3.5 V) | 20 g |
| LR1000E2 | UART-TTL | UART-TTL | 3.3–5 V | 10 g |
| LR1000E4 | UART-TTL | UART-TTL | 3.3–5 V | 10 g |
| LR1200D23 | UART-TTL | UART - TTL, customizable | 3.3 V – 5 V (recommended supply voltage ≥ 3.5 V) | 20 g |
| LR1200E2 | UART-TTL | UART-TTL | 3.3–5 V | 10 g |
| LR1200E4 | UART-TTL | UART-TTL | 3.3–5 V | 10 g |
| LR1500D23 | UART-TTL | UART - TTL, customizable | 3.3 V – 5 V (recommended supply voltage ≥ 3.5 V) | 20 g |
| LR1500E2 | UART-TTL | UART-TTL | 3.3–5 V | 10 g |
| LR1500E4 | UART-TTL | UART-TTL | 3.3–5 V | 10 g |
| LR2000E2 | UART-TTL | UART-TTL | 3.3–5 V | — |
| LR2000E4 | UART-TTL | UART-TTL | 3.3–5 V | — |
| LRF0305C | UART-TTL | UART(TTL 3.3V) | DC 3~5V | 14 g |
| LRF0306C | UART-TTL | UART(TTL 3.3V) | DC 3~5V | 14 g |
| LRF0405C | UART-TTL | UART, 3.3 V TTL level | — | 32 g |
| LRF0609C | UART-TTL | TTL | 4.5 V–16 V | 62 g |
| LRF0818C | UART-TTL | TTL | 4.5 V–16 V | 65 g |
| LRF100H | UART-TTL | UART, IIC | 9–36 V DC | 20 g |
| LRF10VB | UART-TTL | UART | 4.5–5.5 V DC | 1 g |
| LRF1200A1 | UART-TTL | UART, 3.3 V TTL | 3.3 V ± 0.1 V (one older section says 3.3–5 V; con | 18 g |
| LRF1500H | UART-TTL | UART/IIC | 9–36 V DC | 20 g |
| LRF200H | UART-TTL | UART, IIC | 9–36 V DC | 20 g |
| LRF22VB | UART-TTL | UART/IIC | 3–3.6 V DC | 1.5 g |
| LRF3000A1 | UART-TTL | UART, 3.3 V TTL | 3.3–5 V DC | 12 g |
| LRF300H | UART-TTL | UART, IIC | 9–36 V DC | 20 g |
| LRF50H | UART-TTL | UART | 9–36 V DC | 15 g |
| LRF50VB | UART-TTL | UART/IIC | 3.3–5 V DC | 1.3 g |
| LRF600H | UART-TTL | UART/IIC | 9–36 V DC | 20 g |
| SPD1200N0 | UART-TTL | UART-TTL (customizable) | 3.3–5 V | 5 g |
| SPD1200N2 | UART-TTL | UART-TTL (customizable) | 3.3–5 V | 5 g |
| SPD1200N3 | UART-TTL | UART, 3.3 V TTL; customizable | DC 3.3–5 V | 6 g |
| SPD1200N4 | UART-TTL | UART-TTL (customizable) | 3.3–5 V | 5 g |
| SPD1200S2 | UART-TTL | UART-TTL, Customizable | 3.3V~5V | 10 g |
| SPD1200Z2 | UART-TTL | UART-TTL, Customizable | 3.3V~5V | 6 g |
| SPD1200ZG | UART-TTL | UART-TTL; customizable | 3.3–5 V | 5 g |
| LRF0610C | UART + RS-422 | TTL: Molex 51021-0500; RS-422: J30J. Confirm the ordered ver | DC12 V | 90 g |
| LRF0815C | UART + RS-422 | RS-422; TTL optional | 12 V DC | 175 g |
| LRF1830C | UART + RS-422 | RS-422 in the specification table; TTL/RS-422 alternatives i | DC 12 V | 400 g |
| LRF1017C | RS-422 | RS422 | DC12 V | 275 g |
| LRF1221C | RS-422 | RS422 | DC12 V | 275 g |
| LRF1222C | RS-422 | RS422 | DC12 V | 335 g |
| LRF1525C | RS-422 | RS422 | DC12 V | 400 g |
| LRF1829C | RS-422 | RS422 | DC12 V | 400 g |
| LRF1831C | RS-422 | RS422 | DC12 V | 410 g |
| LRF0105C | — | DC3～5 V | 29 g | |
| LRF0310C | — | 4.5V～16V | 32 g | |
| LRF0612C | — | DC 4.5～16 V | 58 g | |
| LRF0816C | — | DC 4.5～16 V | 58 g |
How to read it
- UART-TTL is the default on 905 nm modules: short cable runs, 115200 baud is typical, often with a discrete power-on line. It does not survive a noisy vehicle harness over a metre.
- RS-422 is what the long-range 1535 nm modules use: differential, tolerant of long cable and inrush. It needs a transceiver on your board — not plug-and-play with a 3.3 V MCU.
- UART + RS-422 means the module has both options; confirm which one your order is built with, because the connector changes.
- Supply is the documented entry, not the peak current. 1535 nm modules pump a rod: expect inrush several times the average.
Where the manufacturer does not publish an interface, this table says so rather
than guessing. Before you design a harness, ask for the protocol document — checksum, byte order and
error codes are not in any marketing page.
Need the protocol document for a model?
Ask with the model and the host interface you are using.
Email tommy@erdimail.com
Nine questions to ask
Transcribed 2026-10-23; each row links to its model page. CSV/JSON: dataset.