2 layers33.7 × 97.8 mm
HAN ESP TSS721
UtilitechAS/amsreader-firmware
ESP8266 and ESP32 compatible firmware to read, interpret and publish data to MQTT from smart electrical meters, both DLMS and DSMR is supported
29 parts470
2 layers170.5 × 216.6 mm
Mega866
JohnDMcMaster/mega866-cad1Aggregate multiple TL866 into a single ZSM socket module
- Size
- 170.5 × 216.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 233
- Pads
- 535
- Tracks, vias
- 1,368, 34
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 6 Oct 2022
- Updated
- 10 Mar 2023
Overview
Mega866 is an open-source printed circuit board by JohnDMcMaster, from the JohnDMcMaster/mega866-cad repository on GitHub. It is a 2-layer board of 170.5 × 216.6 mm with 42 parts on 233 nets, routed with 1,368 tracks and 34 vias.
It is built around the BSS84. Its parts include 24 resistors, 12 connectors, 3 transistors, 2 diodes and 1 IC. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdmega866
Aggregate multiple TL866 into a single ZSM socket module
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0 | Resistor_SMD:R_0603_1608Metric | R12, R13, R14, R16, R18, R19, R20, R21, R22, R23, R24 |
| 4 | Conn_01x06_Male | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J4, J6, J8, J10 |
| 4 | NOLOAD | Resistor_SMD:R_0603_1608Metric | R7, R8, R9, R10 |
| 4 | tl866_dip40 | mega866:tl866 | J3, J5, J7, J9 |
| 3 | 4.7k | Resistor_SMD:R_0603_1608Metric | R4, R5, R11 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 2 | 47k | Resistor_SMD:R_0603_1608Metric | R3, R6 |
| 2 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J11, J12 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 2 | R | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 4.7K | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | BSS84 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Pico | mega866:RPi_Pico_SMD_TH | U1 |
| 1 | ZSM1-SM1 | mega866:5650470-5 | J1 |
| 1 | ZSM1-SM2 | mega866:5650470-5 | J2 |
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Questions
How big is the Mega866 PCB?
It measures 170.5 × 216.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mega866 use?
42 parts, built around the BSS84. 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.
Where can I download the Mega866 KiCad files?
From the JohnDMcMaster/mega866-cad repository on GitHub, at the commit this page was made from: the board is r1/mega866.kicad_pcb and its schematic r1/mega866.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mega866 design in my own project?
Its repository states no licence, so its author keeps all rights: ask JohnDMcMaster before reusing the design.