HardLabs

Rotenso wifi mod v2

saper-2·esp8266-osk103·pcb/module-v2/rotenso-wifi-mod-v2.kicad_pcb

Rotenso wifi mod v2 PCB layout, top view — open source ESP8266 board by saper-2

About the Rotenso wifi mod v2 PCB

Rotenso wifi mod v2 is an open source ESP8266 PCB design by saper-2, published on GitHub. It is a 2-layer board measuring 40 × 22 mm, with 44 components from 27 distinct parts.

Its main chip is the ESP8266_ESP-12E, from the ESP8266 family. Other key parts include the 1117-33. By type, the board carries 15 resistors, 7 test points, 7 capacitors, 5 connectors, 3 diodes and 2 switches.

It belongs with the iot & wireless designs in this gallery.

From the project

A replacement module for OSK103/OSK105 based on ESP8266 & esphome

This is basically a my version of Sergey's IoT-Uni-Dongle . I have created this for my Rotenso branded A/C (and any other A/C that take OSK103 or newer OSK105 wifi module).

E.g.: for hackers that got into manufacturer servers would be then simple to remotely upload firmware that would create encrypted tunnel from their server to inside my home network. Well, someone can say this won't happen, but I in last year, I read about chinese server hacked and that company stayed quiet about it, until stolen data made into black market and started popping up everywhere...

Rotenso wifi mod v2, from the project README
From the project README

Main components on the Rotenso wifi mod v2

1117-33

Rotenso wifi mod v2 bill of materials (BOM)

44 components, 27 distinct parts.

QtyPartRefs
1
1117-33
U1
1
ESP8266_ESP-12E
M1
1
JST-XH(4p 2.5mm)
J1
1
USBPlug
J2
1
ESP_FLASH_CONN
J3
1
IR
P1
1
IR+
P2
1
BOOT
SW1
1
RESET
SW2
2
RK7002DW
T1, T2
5
TP
TP1, TP3, TP4, TP5, TP6
2
TP
TP2, TP7
1
G
D1
1
Or
D2
1
Y
D3
1
Z600
FB1
2
100n
C1, C4
2
22/10V
C2, C3
1
1u
C5
1
470p
C6
Show 7 more
QtyPartRefs
1
15/6,3V
C7
3
4k3
R1, R8, R9
2
22R
R2, R3
5
22k
R4, R5, R6, R7, R11
2
10k
R10, R12
2
10k
R13, R14
1
470R
R15

Rotenso wifi mod v2 design files

The KiCad project lives in the saper-2/esp8266-osk103 repository on GitHub; these links point at the commit this page was built from.

Rotenso wifi mod v2: common questions

What microcontroller does the Rotenso wifi mod v2 use?

The Rotenso wifi mod v2 is built around the ESP8266_ESP-12E, from the ESP8266 family.

How big is the Rotenso wifi mod v2 PCB?

The Rotenso wifi mod v2 measures 40 × 22 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rotenso wifi mod v2?

44 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rotenso wifi mod v2 design files?

From the saper-2/esp8266-osk103 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Rotenso wifi mod v2 design in my own project?

The repository has no license, so all rights stay with saper-2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Rotenso wifi mod v2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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