DC line module+Meter probe
kwiecinski·BMS-and-offgrid-photovoltaic-management-system·hardware/DC_line_measurment_module+Meter_probe/DC_line_module+Meter_probe.kicad_pcb
About the DC line module+Meter probe
DC line module+Meter probe is an open source PCB design by kwiecinski, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 100 mm, with 98 components from 35 distinct parts.
Other key parts include the 74HC14, CA56-12SURKWA, ST485EBDR, AMS1117-5.0 and 74HC595. By type, the board carries 38 resistors, 21 transistors, 16 ICs, 11 capacitors, 8 connectors and 4 diodes.
It belongs with the iot & wireless, power & battery and sensors designs in this gallery.
From the project
Project contains BMS for lead-acid batteries and ESP-based board used to pull information from EASUN offgrid inverter, energy meters and sensors. It show informations od displays and use ESPhome to send it to Home Assistant..
1. Photovoltaic modules 2. Concrete base mounting 3. Metalworking and welding mounting bases and angle bar 4. Painting mounting base, angle bars and perforated profiles 5. PV mountings to perforated profiles 6. Assembly of PV installation 7. Fully assembled PV installation 8. Underground Cable Installation and Connection to the Building
B. EASUN inverter - description, installation schematic and wiring #### C. Managemenet system part: - BMS for lead-acid batteries - equalize battery, protect from large charge/discharge currents, montors battery state (temp, voltage) - ESP32 Master module -…

Main components on the DC line module+Meter probe
DC line module+Meter probe bill of materials (BOM)
98 components, 35 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC14 | SO-16_3.9x9.9mm_P1.27mm | U1 |
| 4 | CA56-12SURKWA | 4-digit-7-segment-display_smd | U2, U14, U15, U16 |
| 2 | ST485EBDR | SOIC-8_3.9x4.9mm_P1.27mm | U3, U4 |
| 1 | AMS1117-5.0 | SOT-223-3_TabPin2 | U5 |
| 3 | 74HC595 | SO-16_3.9x9.9mm_P1.27mm | U6, U7, U8 |
| 3 | ~ | JZG_E5627BRG-1_7_SEGMENT_DISPLAY | U9, U11, U12 |
| 1 | ULN2803A | SOIC-18W_7.5x11.6mm_P1.27mm | U10 |
| 1 | AP74700 | SOT-23-6_Handsoldering | U13 |
| 18 | BC807 | SOT-23 | Q1, Q2, Q3, Q5, Q6, Q7, Q8, Q9 +10 |
| 2 | BC817 | SOT-23 | Q4, Q15 |
| 1 | IRF540N | TO-220-3_Vertical | Q20 |
| 1 | DATA_INPUT | JST_XH_B5B-XH-A_1x05_P2.54mm_Vertical | J1 |
| 1 | DATA_BRIDGE | JST_XH_B5B-XH-A_1x05_P2.54mm_Vertical | J2 |
| 1 | POWER_RS485 | Pin_Header_Straight_1x06_Pitch2.54mm | J3 |
| 1 | PROBE_CONN | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | IN | Pin_D1.4mm_L8.5mm_W2.8mm_FlatFork | J5 |
| 1 | GND | Pin_D1.4mm_L8.5mm_W2.8mm_FlatFork | J6 |
| 1 | GND | Pin_D1.0mm_L10.0mm | J7 |
| 1 | OUT | Pin_D1.4mm_L8.5mm_W2.8mm_FlatFork | J8 |
| 1 | LL4148 LED-AL-IR50 | LED_D5.0mm | D1 |
Show 15 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | BPV10 | LED_D5.0mm | D2, D4 |
| 1 | LED-AL-IR50 | LED_D5.0mm | D3 |
| 1 | 100u | CP_EIA-6032-28_Kemet-C | C1 |
| 4 | 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C5, C6 |
| 2 | 22u | CP_EIA-3528-21_Kemet-B | C4, C7 |
| 3 | 100n | C_0805_2012Metric | C8, C9, C10 |
| 1 | 470u/6,3V | CP_Radial_D10.0mm_P2.50mm | C11 |
| 17 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R6, R9, R10, R13, R14, R15 +9 |
| 2 | 160R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R19 |
| 1 | 10K 47k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 3 | 47k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R20, R26 |
| 2 | 22k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R28 |
| 3 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R31, R36 |
| 2 | 120R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12 |
| 8 | 200R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18, R21, R22, R25, R27, R29, R30 |
DC line module+Meter probe design files
The KiCad project lives in the kwiecinski/BMS-and-offgrid-photovoltaic-management-system repository on GitHub; these links point at the commit this page was built from.
DC line module+Meter probe: common questions
How big is the DC line module+Meter probe?
The DC line module+Meter probe measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DC line module+Meter probe?
98 components, from 35 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 DC line module+Meter probe design files?
From the kwiecinski/BMS-and-offgrid-photovoltaic-management-system 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 DC line module+Meter probe design in my own project?
Yes, under the terms of its MIT license, which kwiecinski chose for the repository.
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