Si7013EVB-UDP-M3L1 Si7013EVB-UDP-M3L1 Users Guide 1. Introduction This user s guide describes the hardware and software included with the Si7013EVB-UDP and Si7013EVB-UDP-M3L1 evaluation kits. This user s guide is included in the evaluation kit. The Si7013EB-UDP port header card contains an Si7013 sensor. The port header card plugs into a Unified Development Platform (UDP) SiM3L1xx 32-bit MCU card with Multiplexed LCD (SiM3L1xxLCD-B-DK). The Si7013EVB-UDP-M3L1 evaluation kit serves as a demonstration of the Si7013 Digital Humidity and Temperature Sensor combined with the SiM3L1xx High-Performance, Low-Power, 32-Bit Precision32 MCU functioning as a battery operated temperature/humidity data logger. It includes the software running on the SiM3L1xx MCU as well as a PC-based application used to configure the data logger and retrieve the data. In addition to being a demonstration of and an example design for a low-power data logger, this evaluation kit contains the hardware and software needed to begin the development of virtually any application designed around the Si7013 and SiM3L1xx. The two main hardware components of Si7013EVB-UDP-M3L1 kit are: UDP SIM3L1XX-LCD MCU Unified Development Platform (UDP) SiM3L1xx MCU card with multiplexed LCD Si7013EB-UDP port header card Note: Si7013EB-UDP refers to the board, and Si7013EVB-UDP refers to the kit. The port header card contains an Si7013 sensor it plugs into the MCU card, which acts as the system motherboard. The Si7013EVB-UDP-M3L1 kit also includes a CD containing software and documentation, including this manual. 2. Hardware Description Figure 1 shows the Si7013EB-UDP plugged into an SiM3L1xx MCU card (SiM3L1xxLCD-B-DK). Figure 2 is a close-up of the Si7013EB-UDP port header card. As will be explained in more detail below, the Si7013EB-UDP can be used with other Silicon Laboratories unified development platforms. 2 The Si7013 temperature and humidity sensor uses the standard I C communications protocol. This two-wire bidirectional bus has a clock signal, SCL, and a bi-directional data line, SDA. For more information about the 2 2 Si7013 and its I C interface, refer to the Si7013 data sheet. Two independent I C buses are implemented on the port header card - one for the on-board Si7013 and one for an optional postage stamp size evaluation board connected via a flex cable. Figure 3 shows an external postage stamp size evaluation board for the Si7013, Si7020, or Si7021. The postage stamp size evaluation boards and a 3-foot, flat, flexible cable are included with the Si7013USB-DONGLE evaluation kit and can be ordered separately. Rev. 0.2 9/13 Copyright 2013 by Silicon Laboratories Si7013EVB-UDP-M3L1Si7013EVB-UDP-M3L1 Figure 1. Si7013EB-UDP Port Header Card Plugged into a UDP SiM3L1xx MCU Card with Multiplexed LCD Figure 2. Si7013EB-UDP Port Header Card Figure 3. Si7013 Postage Stamp Evaluation Board 2 Rev. 0.2