Introduction

Heimdall-Slave is a product consisting of a PIR (Pyroelectric Infra-Red) sensor, a highly integrated 433MHz ISM band radio transmitter together with a 32-bit general purpose ARM M0-based microcontroller.

Heimdall-Slave integrates 160kB of flash RAM and 8kB of SRAM on die. It integrates multiple clocking options including use of an external low cost 30MHz XTAL and integrated low power (<1uA) 10kHz auxiliary clock, for high performance, low power designs.

The integrated wireless transmitter operates in the 433 MHz ISM band with capability from 310MHz – 450 MHz covered by a single crystal and a fractional-N PLL. FSK, PSK and ASK modulation are all fully supported.

The PIR interface consists of two extremely low-power uncommitted operational amplifiers, which may be configured as bandpass filters to condition the PIR sensor’s output; plus a window comparator, which may be used in combination with a digital state machine, to determine the validity of motion events.

Parameters

Parameter Name Value Comments
MCU ARM M0 32-Bit MCU
Flash 160kB
RAM 8kB
GPIOs 10
LED Drivers2
RF 433MHz ISM-band integrated transmitter
ADC 1×8-10bits
ADC Channels 1×12
DAC
PWM
Others  PIR
Power Supply 2.2-3.2V
Operation Temperature -10C ~ +60C
Package 4×4 20pins QFN

Documentation/Tools

catgory Link Upload Date
Datasheet iND80212_HeimdallS_datasheet_rev1.0.pdf  2018/02/25
Product Brief heimdall-slave-ProductBrief.pdf  2018/02/25
User Guider iND80212_HeimdallS_starting_guide_rev1.0_.pdf  2018/02/25
 Schematic iND80212_HeimdallS_PIRschematic_rev1.0.pdf  2018/02/25
 SDK HeimdallSlaveSWDesignKIT1215_002.zip  2018/02/25