# YDLIDAR SDM15 Single-Point ToF Lidar

> YDLIDAR SDM15 is a single-point ToF lidar rangefinder. It measures 50 mm to 15 m at 80 % reflectivity, with ≤ 20 mm error to 1 m, 3 % to 2 m and 4 % to 15 m. It ranges at 10–1800 Hz (adaptive) and talks two-way 3.3 V UART at 460800 baud (up to 1.5 Mbps) on GH1.25-4P. 5 V / 100 mA, 905 nm Class I laser, 60 klux, 15 g, 45.38 × 18.78 × 24.3 mm, 2 × M2 ears 39 mm apart.

- Manufacturer: YDLIDAR (Shenzhen EAI Technology)
- Part number: SDM15
- Category: Lidar & ToF range sensors
- Canonical page: https://www.xirkit.io/products/ydlidar-sdm15-single-point-tof-lidar-db18
- Pinout: https://www.xirkit.io/products/ydlidar-sdm15-single-point-tof-lidar-db18/pinout
- Structured JSON: https://www.xirkit.io/products/ydlidar-sdm15-single-point-tof-lidar-db18/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Lidar type | single-point |
| Ranging method | dToF |
| Min range | 0.05 m |
| Max range | 15 m |
| Max range rated at reflectivity | 80 % |
| Accuracy (±) | 20 mm |
| Accuracy detail | ≤ 20 mm (≤ 1 m), ≤ 3 % (1–2 m), ≤ 4 % (2–15 m) |
| Sample rate | 1,800 Hz |
| Wavelength | 905 nm |
| Laser safety class | Class I (IEC 60825-1, 21 CFR 1040.10/1040.11) |
| Interface | UART |
| Ambient light rating | 60 klux |
| Weight | 15 g |
| Supply voltage | 4.8–5.2 V |
| Dimensions | 45.38 × 18.78 × 24.3 mm |
| Operating temperature | -10 to 50 °C |

## Pinout (4 pins, 0 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| VCC | GH1.25-4P | power in | — | power_in | — | — | — | — | — | — | — |
| Tx | GH1.25-4P | uart tx | — | tx | — | — | — | — | — | — | — |
| Rx | GH1.25-4P | uart rx | — | rx | — | — | — | — | — | — | — |
| GND | GH1.25-4P | ground | — | ground | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| aifitlab.com | 45 USD | preorder | 2026-10-18 | https://aifitlab.com/products/ydlidar-sdm15-lidar |

## FAQ

**What voltage powers the YDLIDAR SDM15 Single-Point ToF Lidar?**

Supply range 4.8–5.2 V.

**How much does the YDLIDAR SDM15 Single-Point ToF Lidar cost?**

From $45 at aifitlab.com. Prices are observed unit prices before tax and shipping.

**What are the YDLIDAR SDM15 Single-Point ToF Lidar dimensions?**

45.38 × 18.78 × 24.3 mm. A STEP model is available for enclosure fit checks.

**Where does this YDLIDAR SDM15 Single-Point ToF Lidar data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [YDLIDAR SDM15 Single-Point ToF Lidar datasheet](https://cdn.shopify.com/s/files/1/0673/6848/5000/files/YDLIDAR_SDM15_Datasheet.pdf?v=1771757326)
- [aifitlab.com listing](https://aifitlab.com/products/ydlidar-sdm15-lidar)

## Part graph

### Alternatives (by use case)

- [Benewake TF-Luna Single-Point ToF Lidar](https://www.xirkit.io/products/benewake-tf-luna-single-point-tof-lidar-3fe9) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $30.99
- [Benewake TFmini Plus IP65 ToF Lidar](https://www.xirkit.io/products/benewake-tfmini-plus-ip65-tof-lidar-55a8) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $49.9
- [Pololu VL53L1X 4 m ToF Sensor Carrier](https://www.xirkit.io/products/pololu-vl53l1x-4-m-tof-sensor-carrier-6d45) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $22.95
- [Benewake TF02-Pro 40 m IP65 Lidar](https://www.xirkit.io/products/benewake-tf02-pro-40-m-ip65-lidar-8e5b) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $87.9
- [Garmin LIDAR-Lite v4 LED Rangefinder](https://www.xirkit.io/products/garmin-lidar-lite-v4-led-rangefinder-947b) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $69.99
- [Benewake TFmini-S 12 m ToF Lidar](https://www.xirkit.io/products/benewake-tfmini-s-12-m-tof-lidar-9c47) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $39.9
- [Benewake TF-NOVA 14 m Line-Laser Lidar](https://www.xirkit.io/products/benewake-tf-nova-14-m-line-laser-lidar-c85a) — Both serve distance, altitude and proximity sensing — check the trade-offs; $45 vs $34.9
- [Benewake TFS20-L Mini Lidar](https://www.xirkit.io/products/benewake-tfs20-l-mini-lidar-79ba) — Both serve distance, altitude and proximity sensing — check the trade-offs; $60 vs $45