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Updated Sonoff SV (markdown)
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Sonoff-SV.md
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Sonoff-SV.md
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# Sonoff SV Version 1.0 (Work in Progress)
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Sonoff Safe Voltage is almost the same as Sonoff Basic R1.
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These are the differences between the two:
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* It can be powered by DC voltage
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* It has more usable GPIO pins
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- GPIO4
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- GPIO5
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- GPIO14
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* It has two LED status lights (RED and GREEN)
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* The traces on the bottom aren't soldered
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* The GND, TX, RX and 3v3 pins are labeled
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### ⚠️ What can the unit handle ⚠️
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The trace is 2 mm wide. By assuming the PCB trace thickness is 1 oz/ft^2 you can calculate the current: **2A**
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If you are using more than 2A be sure to put more solder on the solder traces.
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# Using Sonoff SV
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You can use the Sonoff SV in three different ways:
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#### 1. Variable DC voltage between 5-24 V
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By not having the jumper connected in the far left. the voltage regulator is used for the relay.
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#### 2. Solid DC voltage 5 V
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By bridging the two pins you are connecting the 5 V input directly to the relay so you are bypassing the regulator so the relay still gets 5 V
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#### 3. ⚠️ With AC voltage ⚠️
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⚠️ ⚡️ **WARNING ONLY DO THIS WHEN YOU KNOW WHAT YOU ARE DOING.** ⚡️ ⚠️
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By removing the two 0 ohm SMD resistors next to the jumper you are disconnecting the voltage input from the logic.
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By doing this you can switch AC again like the Sonoff Basic.
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Than You can use the jumpers labeled 5~12 V as your DC voltage for the ESP and relay.
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## Official Sources
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* Itead Product Page:
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* Itead Shop: https://www.itead.cc/sonoff-sv.html
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* Itead Wiki: https://www.itead.cc/wiki/Sonoff_SV
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The sonoff safe voltage is almost the same as the sonoff basic.
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It has the ESP 8266 with 1MB flash
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## difference between sonoff basic
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* It can be powered by DC voltage
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* It has extra GPIO pin headers
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* It has two LED status lights (RED and GREEN)
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* The traces on the bottom aren't soldered
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* The GND,TX,RX and 3v3 pins are labeled
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| Usable GPIO pins |
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| ------------- |
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| GPIO4 |
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| GPIO5 |
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| GPIO14 |
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### ⚠️ what can the unit handle ⚠️
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The trace is 2 mm wide.
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By assuming the pcb trace thickens is 1 oz/ft^2
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with that information you can calculate the current:
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2 A
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If you are using more current be sure to put solder on the solder pad area.
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# using the sonoff SV
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You can use the sonoff SV in three different ways.
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### 1. with variable DC voltage between 5-24 V
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By not having the jumper connected in the far left. the voltage regulator is used for the relay.
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### 2. with solid DC voltage 5 V
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By bridging the two pins you are connecting the 5 V input directly to the relay so you are bypassing the regulator so the relay still gets 5 V
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### 3. ⚠️ with AC voltage ⚠️
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⚠️ ⚡️ WARNING ONLY DO THIS WHEN YOU KNOW WHAT YOU ARE DOING. ⚡️ ⚠️
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By removing the two 0 ohm SMD resistors next to the jumper you are disconnecting the voltage input from the logic.
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By doing this you can switch AC again like the sonoff basic.
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Than You can use the jumpers labeled 5~12 V as your DC voltage for the ESP and relay.
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***
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