Interface · UART
UART laser rangefinder modules: 32 ERDI models compared
32 ERDI modules publish UART as a communication interface. Wiring, frame format and drivers for the UART models are linked from each row.
UART models
| Model | Published range | Wavelength | Interface | Accuracy | Weight | Price |
|---|---|---|---|---|---|---|
| LRF0405C | 4,000 m or more at 30% reflectance and visibility of at least 6 km | 1535 +/- 5 nm | UART, 3.3 V TTL level | +/-2 m | ≤32 ±1 g (notation as printed in the current module table) | From $400 per unit |
| LR1000D23 | White building: 4 m – 1,000 m (max. 1,200 m at night); vegetation ≥ 750 m | 905 nm ± 5 nm | UART-TTL, customizable | δ ≤ 100 cm, 5 m ≤ d < 1000 m¹) (Standard version: ±1 m) | ≈ 20 g | From $110 per unit |
| LR1000E2 | 4–1,000 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $30 per unit |
| LR1000E4 | 4–1,000 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $30 per unit |
| LR1200D23 | 4 m – 1,200 m (max. 1,200 m) | 905 nm ± 5 nm | UART - TTL, customizable | δ ≤ ±1 m, 4 m ≤ d < 1000 m¹) (Standard version: ±1 m) | ≈ 20 g | From $130 per unit |
| LR1200E2 | 4–1,200 m | 905 ± 5 nm | UART-TTL | Both sources give ±1 m (6 m ≤ D < 500 m) and ±(0.5 m +… | ≤10 g | From $35 per unit |
| LR1200E4 | 4–1,200 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $35 per unit |
| LR1500D23 | 4 m – 1,500 m | 905 nm ± 5 nm | UART - TTL, customizable | δ ≤ ±1 m, 4 m ≤ d < 1000 m¹) (Standard version: ±1 m) | ≈ 20 g | From $140 per unit |
| LR1500E2 | 4–1,500 m | 905 ± 5 nm | UART-TTL | Both sources give ±1 m (6 m ≤ D < 500 m) and ±(0.5 m +… | ≤10 g | From $40 per unit |
| LR1500E4 | 4–1,500 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $40 per unit |
| LR2000E2 | 4–2,000 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); 0.4% of D (400 m < D ≤ 2,000 m) | From $50 per unit | |
| LR2000E4 | 4–2,000 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); 0.4% of D (400 m < D ≤ 2,000 m) | From $50 per unit | |
| LRF0305C | ≥ 4,000m @60% Reflectivity, Building Target ≥3,000m @30% Reflectivity, 2.3 × 2.3m Target… | 1535±5nm | UART(TTL 3.3V) | ±1 m | ≤14 ±1 g (notation as printed in the module document) | From $300 per unit |
| LRF0306C | ≥ 4,000m @60% Reflectivity, Building Target ≥3,000m @30% Reflectivity, 2.3 × 2.3m Target… | 1535±5nm | UART(TTL 3.3V) | ±1 m | ≤14 ±1 g (notation as printed in the module document) | From $300 per unit |
| LRF100H | 0.05–100 m (90% reflectivity); 0.05–30 m (10% reflectivity) | 905 nm | UART, IIC | ±10 cm (<10 m); 1% (≥10 m) | 20 ± 2 g | From $80 per unit |
| LRF10VB | 0.05–9 m (90% reflectivity); 0.05–5 m (10% reflectivity) | 940 nm | UART | ±5 cm (<5 m); 1% (≥5 m) | 1 g | From $6 per unit |
| LRF1200A1 | 5–1,200 m | 905 nm | UART, 3.3 V TTL | ±1 m (5 m ≤ L ≤ 100 m); ±(1 + 0.004L) m (L > 100 m) | 18 g | From $35 per unit |
| LRF1500H | 0.05–1,500 m (90% reflectivity); 0.05–300 m (10% reflectivity) | 905 nm | UART/IIC | ±10 cm (<10 m); 1% (≥10 m) | 20 ± 2 g | From $180 per unit |
| LRF200H | 0.05–200 m (90% reflectivity); 0.05–70 m (10% reflectivity) | 905 nm | UART, IIC | ±10 cm (<10 m); 1% (≥10 m) | 20 ± 2 g | From $100 per unit |
| LRF22VB | 0.05–20 m (90% reflectivity); 0.05–10 m (10% reflectivity) | 905 nm | UART/IIC | ±5 cm (<5 m); 1% (≥5 m) | 1.5 g | From $8 per unit |
| LRF3000A1 | ≥3,000 m | 905 ± 10 nm | UART, 3.3 V TTL | ±0.7 m (D ≤ 100 m); ±(0.7 + 0.003D) m (D > 100 m) | 12 ± 0.5 g | From $80 per unit |
| LRF300H | 0.05–300 m (90% reflectivity); 0.05–100 m (10% reflectivity) | 905 nm | UART, IIC | ±10 cm (<10 m); 1% (≥10 m) | 20 ± 2 g | From $140 per unit |
| LRF50H | 0.05–50 m (90% reflectivity); 0.05–15 m (10% reflectivity) | 905 nm | UART | ±5 cm (<10 m); 1% (≥10 m), 2σ | 15 ± 2 g | From $50 per unit |
| LRF50VB | 0.05–50 m (90% reflectivity); 0.05–20 m (10% reflectivity) | 905 nm | UART/IIC | ±5 cm (<5 m); 1% (≥5 m) | 1.3 g | From $20 per unit |
| LRF600H | 0.05–600 m (90% reflectivity); 0.05–200 m (10% reflectivity) | 905 nm | UART/IIC | ±10 cm (<10 m); 1% (≥10 m) | 20 ± 2 g | From $160 per unit |
| SPD1200N0 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under… | 905 nm ±5 nm | UART-TTL (customizable) | ±0.3 m (D ≤100 m); ±0.3 m + D × 0.7‰ (100 m < D <1,200 m) | ≈5 g | From $35 per unit |
| SPD1200N2 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under… | 905 nm ±5 nm | UART-TTL (customizable) | ±0.3 m (D ≤100 m); ±0.3 m + D × 0.7‰ (100 m < D <1,200 m) | ≤5 g | From $35 per unit |
| SPD1200N3 | 3–1,000 m | 905 ± 5 nm | UART, 3.3 V TTL; customizable | ±0.5 m at d ≤100 m; ±(0.5 m + 0.00075d) for 100 m < d… | ≤6 g | From $37 per unit |
| SPD1200N4 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under… | 905 nm ±5 nm | UART-TTL (customizable) | ±0.3 m (D ≤100 m); ±0.3 m + D × 0.7‰ (100 m < D <1,200 m) | ≈5 g | From $35 per unit |
| SPD1200S2 | Catalog range: 0.2–1,200 m. Sources also report a 1,500 m night-time maximum under… | 905nm±5nm | UART-TTL, Customizable | ±0.3m (≤400m)±0.5m + d × 0.1% (400m＜d＜1,200m) | ≤10g | From $150 per unit |
| SPD1200Z2 | Catalog range: 0.2–1,200 m; strong sunlight or low visibility may reduce range. Sources… | 905nm±5nm | UART-TTL, Customizable | Current published table and archived factory PDF: ±0.2 m… | ≈6g | From $150 per unit |
| SPD1200ZG | 0.1–1,200 m | 905 ± 5 nm | UART-TTL; customizable | ±0.5 m at d ≤100 m; ±(0.5 m + 0.0007d) for 100 m < d <1,200… | ≤5 g | From $80 per unit |
Drivers and documents
Protocol documents and drivers for every UART model are public in erdi-lrf-drivers. Open any model above for its datasheet, wiring, Pixhawk, ROS 2, Arduino and price pages.
FAQ
Which is the lowest-priced UART laser rangefinder module?
Among the models listed, the LRF10VB has the lowest published price, From $6 per unit with shipping included.
Which is the lightest UART laser rangefinder module?
The LRF10VB at 1 g is the lightest of the models listed.
Why does every range figure show a condition?
Vendors measure range on different targets (white board, building, 10 percent reflectivity) and in different visibility. A number without its condition cannot be compared, so this page lists the condition next to each range.
Related guides
Model records
Open the model page for the full specification table, downloads, published price and ordering.
- LRF0405C — LRF0405C 1535 nm Laser Rangefinder Module
- LR1000D23 — LR1000D23 905 nm Laser Rangefinder Module
- LR1000E2 — LR1000E2 905 nm Laser Rangefinder Module
- LR1000E4 — LR1000E4 905 nm Laser Rangefinder Module
- LR1200D23 — LR1200D23 905 nm Laser Rangefinder Module
- LR1200E2 — LR1200E2 905 nm Laser Rangefinder Module
- LR1200E4 — LR1200E4 905 nm Laser Rangefinder Module
- LR1500D23 — LR1500D23 905 nm Laser Rangefinder Module