JonathanPleuron/Smart-DevicesThis project was realised in the IoT growing context. It introduces a solution of smart gas sensor using the emerging LoRa technology.
Gas Sensor V1 is an open-source printed circuit board by JonathanPleuron, from the JonathanPleuron/Smart-Devices repository on GitHub. It is a 2-layer board of 165 × 92.5 mm with 45 parts on 65 nets, routed with 242 tracks and 28 vias.
It is built around the ATMEGA328P-PU, LTC1050CP and PN2222A. Its parts include 7 resistors, 5 ICs, 4 connectors, 3 capacitors and 3 diodes. It belongs with the sensors and measurement boards and the AVR (ATmega, ATtiny) boards of this library.
This project was realised in the IoT growing context. It introduces a solution of smart gas sensor using the emerging LoRa technology.
See the arduino section for the sensor relative implementation (low level). See the JAVA section for application (high level).
See documentation folder for global documentation about the project and useful datasheets
A PCB was designed for the Smart sensor (Uses KiCad free software)
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R_current, Rcal1, Rref_1, Rref_2 | |
| 4 | Gas_Sensor:Hole | , , , | |
| 4 | 100n | Capacitors_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C_prog1, C1, C3, C4 |
| 2 | 100k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R5 |
| 2 | 10k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R10 |
| 2 | 1k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R6 |
| 2 | D | Diodes_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1, D2 |
| 1 | Gas_Sensor:PAD_02 | J5 | |
| 1 | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J4 | |
| 1 | TO_SOT_Packages_THT:TO-78-10 | U1 | |
| 1 | Socket_Strips:Socket_Strip_Straight_1x10_Pitch2.54mm | J3 | |
| 1 | Crystals:Resonator-3pin_w6.0mm_h3.0mm | Resonator | |
| 1 | Socket_Strips:Socket_Strip_Straight_1x02_Pitch2.54mm | J1 | |
| 1 | Diodes_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D4 | |
| 1 | LEDs:LED_D5.0mm | LED | |
| 1 | 100n | Capacitors_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C6 |
| 1 | 150 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R_led1 |
| 1 | 1meg | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R_xtal1 |
| 1 | 1u | Capacitors_THT:CP_Radial_D5.0mm_P2.50mm | C2 |
| 1 | 3.6V | Gas_Sensor:BatterieSupport | BT1 |
| 1 | 330n | Capacitors_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C5 |
| 1 | 3V6_to_10V_stepup | Gas_Sensor:DC_DC_stepup | U5 |
| 1 | ATMEGA328P-PU | Housings_DIP:DIP-28_W7.62mm_Socket_LongPads | U6 |
| 1 | Jack_5V | Gas_Sensor:Jack_female | |
| 1 | L78L33_TO92 | TO_SOT_Packages_THT:TO-92_Inline_Narrow_Oval | 5/3.3V |
| 1 | LTC1050 | Housings_DIP:DIP-8_W7.62mm | U2 |
| 1 | Li_ion_charger | Gas_Sensor:Li-ion_Charger | |
| 1 | PN2222A | TO_SOT_Packages_THT:TO-18-3 | Q1 |
| 1 | R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | RN2483_BREAKOUT | Gas_Sensor:RN2483_BREAKOUT | U7 |
| 1 | SW_DPDT_x2 | Gas_Sensor:switch_3pins | |
| 1 | SW_PUSH | Buttons_Switches_THT:SW_TH_Tactile_Omron_B3F-10xx | RESET |
It measures 165 × 92.5 mm and has 2 copper layers, 1.6 mm thick.
45 parts, built around the ATMEGA328P-PU, LTC1050CP and PN2222A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the JonathanPleuron/Smart-Devices repository on GitHub, at the commit this page was made from: the board is PCB/Project_V1/Gas_Sensor_V1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask JonathanPleuron before reusing the design.
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