| Last visit was: Fri May 08, 2026 10:38 pm | It is currently Fri May 08, 2026 10:38 pm |
If you cannot find the exact YL105 datasheet, use a multimeter to measure the following in your current circuit: How To Read Electrical Component Datasheets For Projects
bool readByte(uint8_t* data) uint8_t byte = 0; for (int i = 0; i < 8; i++) while(digitalRead(YL105_PIN) == LOW); // Wait for start of bit uint32_t startTime = micros(); while(digitalRead(YL105_PIN) == HIGH); uint32_t duration = micros() - startTime;
Stop fiddling with external pull-ups and faulty libraries. Download the original YL105 datasheet, follow the timing diagrams above, and build humidity logging that just works. yl105 datasheet better
The designation typically refers to a common, low-cost IR (Infrared) obstacle avoidance sensor module used in Arduino, Raspberry Pi, and robotics projects. The "datasheets" widely available for this module are often inadequate—lacking electrical characteristics, timing diagrams, or thermal data. This write-up identifies the core component (the LM393 comparator and the IR emitter/detector pair) and provides a methodology for assembling a "better datasheet" by consulting manufacturer data for the underlying ICs and optical components.
While the data pins of the nRF24L01 are technically 5V tolerant, the power rail is not. Microcontroller development boards like the standard Arduino Uno often feature a 3.3V pin, but its internal regulator frequently fails to provide enough instantaneous current during high-power RF transmission states—especially when using amplified models like the NRF24L01+PA+LNA . If you cannot find the exact YL105 datasheet,
Allows for digital communication, making it easy to integrate into modern IoT or industrial SCADA systems without signal degradation over long cable runs. 3. High-Quality Construction and Materials
: Eliminates the need for external voltage dividers or dedicated 3.3V power supplies that may not provide enough current on certain Arduino clones. The "datasheets" widely available for this module are
Based on the YL105 datasheet specifications, here is a "better" initialization sequence than most tutorials provide.
FAQ