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Update README.md

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@ -82,7 +82,7 @@ Pi-KVM supports several different hardware configurations, which called **platfo
**We recommend v2 since it supports all features including the Mass Storage Drive. It's also easiest to make.**
**Hardware for v2**
* Raspberry Pi 4 (1Gb is enough) or ZeroW. We recommend 4 because Zero is very slow.
* Raspberry Pi 4 (2Gb model is enough) or ZeroW. We recommend 4 because ZeroW is very slow.
* MicroSD card (min 16 Gb recommended).
* USB-A 3A charger or power supply.
* HDMI to CSI-2 bridge board: [Lusya or any other based on Toshiba TC358743](https://aliexpress.com/item/4000102166176.html).
@ -92,7 +92,7 @@ Pi-KVM supports several different hardware configurations, which called **platfo
- 1x another cable USB-A to any.
* Only for Raspberry Pi Zero W:
* 2x USB A-to-micro cables (for power and keyboard & mouse emulator).
* ATX control (optional):
* For ATX control (optional):
- [4x MOSFET relay OMRON G3VM-61A1](https://www.digikey.com/products/en?keywords=G3VM-61A1).
- 4x 390 Ohm resistors.
- 2x 4.7k Ohm resistors.
@ -102,7 +102,7 @@ Pi-KVM supports several different hardware configurations, which called **platfo
* Raspberry Pi 2 or 3.
* MicroSD card (8GB is enough).
* USB-A 3A charger or power supply.
* Keyboard & mouse emulator (HID):
* For keyboard & mouse emulator (HID):
- Arduino Pro Micro (based on ATMega32u4).
- [Logic levels shifter](https://www.sparkfun.com/products/12009).
- NPN transistor (almost any NPN transistor: 2n2222 or similar).
@ -114,8 +114,8 @@ Pi-KVM supports several different hardware configurations, which called **platfo
**Addition**
* If you want to capture VGA, buy the [VGA-to-HDMI converter](https://aliexpress.ru/item/4000553298530.html).
**PS: Don't use random relay modules or random optocouplers!** Some relays or optocouplers may not be sensitive enough for the Raspberry Pi, some others may be low-level controlled. Either use relays that are controlled by a high level, or follow the scheme and buy an OMRON. See details [here](https://github.com/pikvm/pikvm/issues/13).
* You can power your Pi-KVM using PoE, but we do not recommend using the official PoE HAT: it is unreliable and [not compatible with the HDMI bridge](https://github.com/pikvm/pikvm/issues/6). Use any other one without I2C fan controller.
* **Don't use random relay modules or random optocouplers!** Some relays or optocouplers may not be sensitive enough for the Raspberry Pi, some others may be low-level controlled. Either use relays that are controlled by a high level, or follow the scheme and buy an OMRON. See details [here](https://github.com/pikvm/pikvm/issues/13).
<img src="no_relays.png" alt="drawing" width="100"/>