ECMeter
About the ECMeter PCB
ECMeter is an open source AVR/Arduino PCB design by BB-KING777, published on GitHub. It is a 2-layer board measuring 69.6 × 65.5 mm, with 52 components from 24 distinct parts.
Its main chip is the Arduino, from the AVR/Arduino family. Other key parts include the Opamp_Dual, NE555P and MCP3004. By type, the board carries 19 resistors, 14 capacitors, 6 diodes, 5 connectors, 3 ICs and 2 transistors.
It belongs with the iot & wireless designs in this gallery.
Main components on the ECMeter
ECMeter bill of materials (BOM)
52 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Opamp_Dual | DIP-8_W7.62mm | U1 |
| 1 | NE555P | DIP-8_W7.62mm | U2 |
| 1 | MCP3004 | DIP-14_W7.62mm | U3 |
| 1 | NPN | TO-92_Inline | Q1 |
| 1 | PNP | TO-92_Inline | Q2 |
| 1 | Power | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 3 | Conn_01x02_Socket | PinHeader_1x02_P2.54mm_Vertical | J2, J3, J5 |
| 1 | Arduino | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | ~ | Nail_Hole | Hole1 |
| 2 | R_Potentiometer_Trim | Potentiometer_Vishay_T73YP_Vertical | RV1, RV2 |
| 6 | D | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 4 | 0.1u | C_Rect_L7.0mm_W2.5mm_P5.00mm | C1, C2, C3, C5 |
| 1 | 10u | C_Disc_D5.0mm_W2.5mm_P5.00mm | C4 |
| 1 | 2.2n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C6 |
| 2 | 100u | CP_Radial_D5.0mm_P2.00mm | C7, C8 |
| 2 | 0.001u | C_Disc_D5.0mm_W2.5mm_P5.00mm | C9, C10 |
| 2 | 10u | C_Rect_L7.0mm_W2.5mm_P5.00mm | C11, C12 |
| 2 | 100nF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C13, C14 |
| 1 | 5.6k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | 4.7k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R18, R19, R20, R21 |
| 5 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R11, R12, R13, R14 |
| 4 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R15, R16, R17 |
| 3 | 2.2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6, R7, R8 |
ECMeter design files
The KiCad project lives in the BB-KING777/Agri_iot_pcbs repository on GitHub; these links point at the commit this page was built from.
ECMeter: common questions
What microcontroller does the ECMeter use?
The ECMeter is built around the Arduino, from the AVR/Arduino family.
How big is the ECMeter PCB?
The ECMeter measures 69.6 × 65.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ECMeter?
52 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the ECMeter design files?
From the BB-KING777/Agri_iot_pcbs repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ECMeter design in my own project?
The repository has no license, so all rights stay with BB-KING777. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the ECMeter without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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