Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Communication Interface | IIC (2-Wire) |
| Operating Voltage | 3.3V - 5.5V DC |
| Temperature Range | -40°C to +80°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.5°C |
| Humidity Accuracy | ±2% RH |
| Response Time | < 2 Seconds |
| Package Type | SMD Module with Pins |
| Anti-Interference | High Immunity Design |
| Application Scope | HVAC, IoT, Weather Stations |
Anonymous
Mar 30, 2026
Rating: 5/5
Excellent for university projects
Documentation was easy to find online, and the library support for Arduino is excellent. Highly recommend for students.
Anonymous
Mar 23, 2026
Rating: 4/5
Good accuracy, easy to integrate
Works great with my ESP32. The anti-interference claim seems valid as I haven't seen any spikes in data. Just remember to pull up the lines correctly.
Anonymous
Mar 12, 2026
Rating: 5/5
Much better than DHT11
Upgraded from a DHT11 and the difference in response time and precision is night and day. The digital signal is very clean.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for my weather station project
The IIC interface made wiring incredibly simple compared to the single-wire DHT models. Readings are stable and consistent even near my router.
Anonymous
Mar 04, 2026
Rating: 4/5
Great for monitoring plants
Using three of these in my automated greenhouse. They handle the high humidity environment well without drifting. One star off because the pins were slightly bent on arrival.
Anonymous
Mar 04, 2026
Rating: 5/5
Reliable and robust
I've tested this against a calibrated industrial meter and it's surprisingly close. The build quality of the module is solid.
Q: Can this sensor be used outdoors directly in the rain?
A: No, while the sensor element is robust, the PCB and connections are not waterproof. You must house it in a breathable, weatherproof enclosure for outdoor use.
Q: Is this compatible with 5V Arduino boards?
A: Yes, the AM2301B operates within a 3.3V to 5.5V range, making it fully compatible with standard 5V Arduino boards like the Uno.
Q: What is the maximum cable length recommended for the IIC connection?
A: For reliable IIC communication, we recommend keeping the cable length under 1 meter. For longer distances, consider using an IIC extender or buffer.
Q: How often can I read data from this sensor?
A: The sensor has a sampling rate limit. We recommend reading data no more than once every 2 seconds to ensure accurate measurements and prevent bus locking.
Q: Does this module come with pull-up resistors installed?
A: Most versions of this module include onboard pull-up resistors for the SDA and SCL lines, but please check the specific schematic provided in the datasheet for your batch.
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