
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

ESP8266 ESP-1 firmware flashing PCB adapter.
Espboard panelize is an open-source printed circuit board by gagath, from the gagath/espboard repository on GitHub. It is a 2-layer board of 66 × 40.6 mm with 17 parts on 17 nets, routed with 69 tracks and 0 vias.
It is built around the LM1117-3.3. Its parts include 5 connectors, 2 capacitors, 2 ICs and 1 resistor. It belongs with the interfaces and adapters boards and the ESP8266 boards of this library.
ESP8266 board #############
A small board for ESP8266 ESP-1 circuits. Micro USB adapters can be found here_.
.. image:: schema.png
.. image:: pcb.png
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10u | Capacitors_THT:CP_Radial_D5.0mm_P2.50mm | C1, C2 |
| 1 | 10k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | CONN_IO | Socket_Strips:Socket_Strip_Straight_1x08_Pitch2.54mm | P3 |
| 1 | CONN_PWR | Socket_Strips:Socket_Strip_Straight_2x01_Pitch2.54mm | P2 |
| 1 | ESP-01v090 | ESP8266:ESP-01 | U1 |
| 1 | LM1117-3.3 | TO_SOT_Packages_SMD:SOT-223 | U2 |
| 1 | SW_FLASH | Buttons_Switches_THT:SW_PUSH_6mm | FLASH |
| 1 | SW_RST | Buttons_Switches_THT:SW_PUSH_6mm | RST |
| 1 | USB_OTG | Connectors:USB_Micro-B | J1 |
| 1 | ftdi | Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm | P1 |
| 1 | usb_connector | usb_connector:usb_adapter | P4 |
The 12 most common of 17 parts.
It measures 66 × 40.6 mm and has 2 copper layers, 1.6 mm thick.
17 parts, built around the LM1117-3.3. 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 gagath/espboard repository on GitHub, at the commit this page was made from: the board is kicad/espboard_panelize.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 gagath before reusing the design.

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

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