📦 Bill Of Materials
Below, we provide you with the full list of physical components that are compatible with the Octopus. These can be divided in three parts: how to prepare and order the PCB, other hardware electronics and sensors, and materials for the bodyframe.
Note that all links provided are examples we know will work to build the Octopus, but it does not exclude other providers of manufacturers.
PCB
The costum PCB can be set up to ways:
- Order the board from a manufacturing company and ask them to pre-solder the components for you.
- Order the board and all small hardware components separately, and solder it by hand. Note, this requires you to know how to solder small components.
In any case, you can find all the Gerberfiles, schematics and BOM files needed to order and solder the Octopus PCB: https://github.com/MIT-Senseable-City-Lab/octopus-fabrication/tree/main/hardware
See PCB for more information on how to set it up.
Hardware components
Overview of all hardware components possible to add to the Octopus:
| Sensor | Comment | URL |
|---|---|---|
| Arduino Nano 33 BLE Sense Rev 2 | Arduino microcontroller board | link |
| Arduino Nicla Vision | Arduino Pro microcontroller board | link |
| SPS30 | Particulate matter evaluation kit | link |
| GPS | GPS-15210 | link |
| Lithium Battery | Lightwaited battery based on Lithium Ion chemistry. Order size of the battery related to your specific use case. | link |
| SD Card | SD card to store collected data (List from Amazon). | link |
| 5V DC fan 40x40mm | Fan to cool down the running hardware. Any kind of 5V DC fan 40x40mm should work. | link |
Bodyframe components
Components you need to order to build the body frame:
| Bodyframe | Comment | URL |
|---|---|---|
| Filament | White PLA or PETG for 3D printing the Octopus, make sure the filament you order works with your printer! | link |
| Mini rubber bands | Used for placing the PCB. Any kind of mini rubber bands should do the trick. | link |
| 1/4 inch insert | Used for different deployment strategies like tripods. | link |
Note: To attatch the bodyframe to other surfaces you need to buy other components. Possible attatchments can be anything with a basic gopro mount (like a tripod), rubberbands, magnets, or strings.
PCB and components
| Item Type | Quantity | Reference | Part | Ref | Description | Pkg Type | Package |
|---|---|---|---|---|---|---|---|
| PCB | 1 | CS1 | (7x7)mm HAL 4L Cu=35um | ||||
| Capacitor | 5 | C1, C6, C8, C9, C11 | 100n/50V | link | CHIP CAP.CER. 100nF 50V 10% X7R 0805 | SMD | CS-C-0805 |
| Capacitor | 2 | C2,C3 | 4.7u/50V-X5R | link | CHIP CAP.CER. 4.7uF 50V 10% X5R 0805 | SMD | CS-C-0805 |
| Capacitor | 2 | C4,C5 | 10u/25V-X5R | link | CHIP CAP.CER. 10uF 25V 10% X5R 0805 | SMD | CS-C-0805 |
| Capacitor | 1 | C7 | 0.33F/5.5V | link | COND.EL.RAD. 0.33F 5.5V -20%+80% P=10 D=11.5x7.5 CB5R5334HF-ZJP CDA | THT | CT-1150-1000 |
| Capacitor | 1 | C10 | 22u/10V-X5R | link | CHIP CAP.CER. 22uF 10V 20% X5R 0805 | SMD | CS-C-0805 |
| Diode | 5 | DS1, DS2, DS3, DS4, DS5 | PMEG1030EJ | link | DIODE SCHOTTKY 3A 10V PMEG1030EJ NXP SOD323 SMT | SMD | SOD323 |
| Connector | 1 | J1 | B2B-PH-K-S | link | CONN. PH 2P M P=2 B2B-PH-K-S JST THT | THT | J-2-0200-MDT-B2B |
| Connector | 1 | J4 | SSM-102-L-SV | link | STRIP 2P F/D P=2.54 SSM-102-L-SV SAMTEC SMT | SMT | J-2-0254-FDS-SSM |
| Connector | 1 | J5 | SSM-108-L-SV | link | STRIP 8P F/D P=2.54 SSM-108-L-SV SAMTEC SMT | SMD | J-8-0254-FDS-SSM |
| Connector | 1 | J6 | SSM-109-L-SV | link | STRIP 9P F/D P=2.54 SSM-109-L-SV SAMTEC SMT | SMT | J-9-0254-FDS-SSM |
| Connector | 1 | J7 | BM04B-SRSS-TBT | link | CONN. SH 4P M/D P=1 BM04B-SRSS-TBT(LF)(SN) JST SMT | SMD | J-4-0100-MDS-SH |
| Connector | 1 | J8 | B5B-ZR-SM4-TF | link | CONN. ZH 5P M/D P=1.5 ZH JST B5B-ZR-SM4-TF | SMD | J-5-0150-MDS-B5B-ZR-SM4 |
| Connector | 1 | J9 | MSD-4-A | link | CONN. MICROSD 9P F/90° PUSH-PUSH MSD-4-A MOLEX SMT | SMD | J-9-0110-FOS-MSD-4-A |
| LED | 1 | LD1 | 150141YS73100 | link | DIODE LED150141YS73100 WURTH SMT | SMD | LD-3228 |
| RGB | 2 | LD2, LD3 | T3A33BRG-H9C0002X1U1930 | link | DIODE LED RGB T3A33BRG-H9C0002X1U1930 HARVATEK SMT | SMD | LD-T3A33 |
| Inductor | 1 | L1 | LQM2HPN4R7MG0L | link | INDUCTOR 4.7uH 1.1A 20% 1008 LQM2HPN4R7MG0L MURATA SMT | SMD | LS-1008 |
| Tactile Switch | 1 | PB1 | FSM4JSMAATR | link | PULSANTE 24V 0.05A D=6x6 SPST FSM4JSMAATR TE SMT | SMD | PB-OT-FSM4J |
| Resistor | 1 | R1 | 523R | link | CHIP RES. 523R 0805 1/8W 1% 100PPM/°C | SMD | RS-0805 |
| Resistor | 2 | R2,R5 | 120k | link | CHIP RES. 120K 0805 1/8W 1% 100PPM/°C | SMD | RS-0805 |
| Resistor | 1 | R3 | 430k | link | CHIP RES. 430K 0805 1/8W 1% | SMD | RS-0805 |
| Resistor | 1 | R4 | 2.8k | link | CHIP RES. 2K8 0805 1/8W 1% 100PPM/°C | SMD | RS-0805 |
| Resistor | 1 | R6 | 180k | link | CHIP RES. 180K 0805 1/8W 1% 100PPM/°C | SMD | RS-0805 |
| Resistor | 2 | R7,R8 | 4.7k | link | CHIP RES. 4K7 0805 1/8W 1% | SMD | RS-0805 |
| Resistor | 7 | R9, R10, R11, R12, R13, R15, R16 | 33k | link | CHIP RES. 33K 0805 1/8W 1% 100PPM/°C | SMD | RS-0805 |
| Resistor | 1 | R14 | 470R | link | CHIP RES. 470R 0805 1/8W 1% | SMD | RS-0805 |
| Resistor | 1 | R17 | 10k | link | CHIP RES. 10K 0805 1/8W 1% | SMD | RS-0805 |
| Resistor | 1 | R18 | 1.5k | link | CHIP RES. 1K5 0805 1/8W 1% | SMD | RS-0805 |
| TVS Diodes | 1 | TVS1 | DT2042-04SO-7 | link | DIODE TVS UNIDIR. DT2042-04SO-7 DIODES SOT23-6 SMT | SMD | SOT23-6-DBV |
| Charger IC | 1 | U1 | MCP73833T-AMI/UN | link | MCP73833T-AMI/UN MICROCHIP MSOP10 SMT | SMD | MSOP10 |
| Regulator IC | 1 | U2 | MCP1642B-50I/MS | link | BOOST MCP1642B-50I/MS MICROCHIP DFN8 SMT | SMD | MSOP8 |
| RTC IC | 1 | U3 | RX-8025SA:AA | link | CLOCK RX-8025SA:AA EPSON TIMING SOP14 SMT | SMD | SOP14 |