Description
Multi-sensor module featuring Raspberry Pi RP2040 MCU highly optimized for low-power real-time use cases
Exo Sense RP is an extremely versatile indoor environment sensor. It combines the power and ease of use of the Raspberry Pi RP2040 microcontroller, with several environmental sensors and input/output lines.
Exo Sense RP embeds temperature, humidity, air quality, light and PIR-based motion detection sensors, as well as a microphone for ambient noise measurements and audio recording. Two digital input/output lines and an open-collector output line are available on the terminal block. A real time clock module with battery back-up is also standard. It can optionally have a factory-installed earthquake sensor module.
An ESD-protected RS-485 bus is available for wired serial communication using the industry standard Modbus protocol or any other half-duplex serial protocol.
Exo Sense RP has an embedded RP2040, with a dual-core Arm Cortex M0+ processor, clocked up to 133 MHz, 264KB of SRAM, and a large 16MB on-board Flash memory.
A hidden USB 1.1 port is used to easily flash the microcontroller.
Features
Sensors:
- temperature
- humidity
- air quality (VOC)
- light intensity
- microphone for sound intensity monitoring, recording and processing
- PIR motion sensor
Mounting:
- 80x80mm wall mount ABS case with fast snap-in terminal block
Power supply:
- 9÷28Vdc power supply, with surge and reverse polarity protection, and 1.1A resettable fuse
Inputs/Outputs:
- 2 x digital inputs or TTL level I/O (1-Wire, I2C, Wiegand support)
- 1 x open collector output
Connectivity:
- standard RS-485 interface connected to RP2040 UART, with electrostatic discharge protection
- micro USB socket for RP2040 programming and debugging
More:
- GPIO-controlled LED
- GPIO/PWM-controlled piezoelectric buzzer, for acoustic feedback
- real time clock (RTC) with replaceable back-up battery
- embedded Microchip ATECC608 secure element chip
Optionals (factory-installed upon request):
- earthquake sensor module
Specifications
| POWER SUPPLY | |
| Power supply operating voltage (VS) | 10…28 V⎓ (VDC) Reverse polarity protection with 1.1 A resettable fuse. Surge protection up to ±1000V/2ohms 1.2/50μs |
| Current consumption at VS +12 V⎓ | 50mA Actual current consumption may vary based on working conditions |
| ARCHITECTURE | |
| Microcontroller | Raspberry Pi RP2040 dual-core Arm Cortex M0+, 133 MHz, 264KB SRAM 16MB on-board Flash memory |
| COMMUNICATION PORTS | |
| Serial communication ports | RS-485 Half-Duplex with TX/RX management controlled by GPIO, or passive mode |
| Baud Rates | 1200 to 115200 |
| ESD-Protection Voltage on RS-485 A/B | ±15 kV human body model ±8 kV contact discharge |
| Surge protection on RS-485 A/B | Surge protection up to ±500 V / 2 Ohms 1.2/50 μs; 600 W peak pulse power capability at 10/1000 μs waveform |
| Fail safe feature on RS-485 | Optional with jumpers (not installed) |
| USB port | Micro-USB B Receptacle USB 1.1 |
| DI1-DI2: DIGITAL inputs | |
| Input voltage range | +0…+40 V |
| Input impedance | 6.5 kOhm |
| Voltage threshold | VIH: 5.1 V VIL: 3.4 V |
| Max recommended cable length | 30 meters |
| DI1-DI2: Digital input/output | |
| Output voltage | VOL: 0.1 V VOH: 5.0 V |
| Input voltage range | +0…+5 V |
| Input voltage threshold | VIH: 1.4 V VIL: 1.1 V |
| Pull-up (+5 V) | 10 kOhm |
| Impedance | 220 Ohm |
| Max recommended cable length | 10 meters |
| DO1: OPEN COLLECTOR OUTPUT | |
| Type | NPN, common on VS, short circuit protected |
| Max output current | 100 mA |
| Voltage range | +0 V…+VS |
| Max recommended cable length | 2 m |
| REAL TIME CLOCK | |
| Oscillator frequency | 32768 Hz |
| Frequency Tolerance | ±20.00 ppm |
| Backup battery | Internal RTCC circuit with backup lithium battery. Only use CR1025 Lithium / Manganese Dioxide (Li/MnO2) batteries. Expected battery life without main power supply: ~2 years |
| EMI IMMUNITY STANDARDS | |
| Electromagnetic immunity compliance | EN 61000-4-2 (ESD) EN 61000-4-3 (Radiated RF Field) EN 61000-4-4 (Burst/fast transient) EN 61000-4-6 (Conducted) EN 61000-4-8 (Power frequency magnetic field) |
| ENVIRONMENTAL | |
| Operating temperature | -10…+50 °C (non-condensing humidity) |
| Relative humidity | 5% to 90% noncondensing |
| Storage temperature | -20…+70 °C |
| Protection degree | IP20 |
| MECHANICAL | |
| 7-pin terminal block characteristics | Maximum conductor cross section: 2.5 mm2 (14 AWG) Recommended stripping length: 7 mm Screw thread: M3Maximum screws tightening torque: 0.6 Nm |
| Housing | Wall mount ABS case |
| Dimensions | width: 80.0 mm height: 80.0 mm depth: 34.2 – 41.7 mm |
| Weight | 90 gr |