Users Manual

TABLE OF CONTENTS
1. OUTLINE ................................................................................... 3
2. PIN DESCRIPTION ...................................................................... 4
2.1. USB INTERFACE ....................................................................... 4
2.2. GROVE INTERFACE..................................................................... 4
3. FUNCTIONAL DESCRIPTION ......................................................... 5
3.1. CPU AND MEMORY ................................................................... 5
3.2. STORAGE DESCRIPTION ............................................................... 5
3.2.1. External Flash and SRAM ................................................... 5
3.3. CRYSTAL ................................................................................ 6
3.4. RTC MANAGEMENT AND LOW POWER CONSUMPTION ............................ 6
4. ELECTRICAL CHARACTERISTICS .................................................... 8
4.1. LIMIT PARAMETERS .................................................................... 8
4.2. WIFI RADIO FREQUENCY .............................................................. 8
4.3. LOW-POWER BLUETOOTH RADIO .................................................... 9
4.3.1. receiver ......................................................................... 9
4.3.2. launcher ........................................................................ 9
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