Greenhouse Control Unit
About the Greenhouse Control Unit PCB
Greenhouse Control Unit is an open source PCB design by nbolton, published on GitHub. It is a 4-layer board measuring 188 × 90.2 mm, with 85 components from 33 distinct parts.
Other key parts include the PCF8574ATS, INA219 and RFM69HW. By type, the board carries 32 resistors, 18 transistors, 13 diodes, 10 connectors, 5 ICs and 3 capacitors.
Main components on the Greenhouse Control Unit
Greenhouse Control Unit bill of materials (BOM)
85 components, 33 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | PCF8574ATS | SSOP-20_4.4x6.5mm_P0.65mm | U1, U2 |
| 2 | INA219 | SOT-23-8 | U3, U4 |
| 1 | RFM69HW | HopeRF_RFM69HW | U5 |
| 4 | IRF4905 | TO-220-3_Vertical | Q1, Q2, Q4, Q5 |
| 6 | 2N7000 | TO-92_Inline | Q3, Q6, Q11, Q13, Q15, Q17 |
| 3 | BC547 | TO-92_Inline | Q7, Q8, Q10 |
| 1 | BC337 | TO-92_Inline | Q9 |
| 4 | STD30NF06LT4 | TO-252-2 | Q14, Q16, Q19, Q20 |
| 4 | Molex_KK-396_01x02 | Molex_KK-396_1x02_P3.96mm_Vertical | J1, J2, J7, J15 |
| 1 | Beep_Jumper | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | PV MPPT module | MPPT-10A-Module | J4 |
| 1 | Conn_01x08_Pin | Molex_KK-396_1x08_P3.96mm_Vertical | J5 |
| 1 | 5V Buck | Buck_Module | J6 |
| 1 | Conn_ESP32_DevKitV1_Female | PinSocket_ESP32_DevKitV1 | J10 |
| 1 | Molex_254_1x08 | Molex_KK-254_AE-6410-08A_1x08_P2.54mm_Vertical | J11 |
| 1 | U.FL-R-SMT-1 | U.FL_Hirose_U.FL-R-SMT-1_Vertical | AE1 |
| 1 | 2kΩ? | Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Fuse | Fuse_3522-2_L | F1 |
| 1 | SRD-12VDC-SL-C | Relay_SRD-12VDC-SL-C | K1 |
| 5 | LED | LED_D5.0mm | D1, D2, D3, D5, D7 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | D | D_DO-35_SOD27_P7.62mm_Horizontal | D4, D12, D13 |
| 1 | D | D_DO-41_SOD81_P7.62mm_Horizontal | D6 |
| 4 | D | D_DO-41_SOD81_P2.54mm_Vertical_AnodeUp | D8, D9, D10, D11 |
| 3 | 10nF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C1, C2, C3 |
| 2 | 0R001 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R1, R18 |
| 2 | 33k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R15 |
| 2 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R16 |
| 4 | 2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R7, R11, R17 |
| 11 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R12, R22, R26, R27, R28, R29, R30 +3 |
| 1 | 100R | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 5 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8, R9, R19, R20, R24 |
| 3 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R21, R25 |
| 2 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R13, R14 |
Greenhouse Control Unit design files
The KiCad project lives in the nbolton/greenhouse repository on GitHub; these links point at the commit this page was built from.
Greenhouse Control Unit: common questions
How big is the Greenhouse Control Unit PCB?
The Greenhouse Control Unit measures 188 × 90.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Greenhouse Control Unit?
85 components, from 33 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Greenhouse Control Unit design files?
From the nbolton/greenhouse repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Greenhouse Control Unit design in my own project?
The repository has no license, so all rights stay with nbolton. Use it as a reference, and ask the author before reusing the design.
