AN-000240
Document Number: AN-000240
Page 4 of 23
Revision: 2.0
1.3
REQUIRED HARDWARE AND SOFTWARE
The hardware list may differ if a different type of module is used. Use the latest or desired software (s/w) package along with the
proper hardware and firmware (f/w).
1.
Hardware
•
DK-CH101 - Evaluation Kit
•
Micro-USB cable
•
CH101 Chirp sensor module
•
Cable FFC 8POS
2.
Software
•
RoboFloor_vX.X.X.exe (provided s/w package)
•
Atmel Studio 7
–
if f/w flash needed
1.4
THEORY
Please refer to AN-000259 CH101 Design Guide for detailed module and module integration information.
The CH101 sensor, a single pulse-echo sensor, is an ultrasonic transceiver that can transmit and receive ultrasound signals. These
sensors measure the round-trip time that it takes for sound to be transmitted and returned to determine the distance. This is also
known as the Time of Flight (ToF). The image below shows an example of the how the sensor detects a signal, in this case a floor
surface. Using the data received, the floor type can be distinguished by the strength of the return signal. For a more in-depth
explanation of ultrasonic sensing and hardware, refer to the reference documentation section.
Figure 1-1. Single-Sensor Pulse-Echo
Floor/Surface
