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Add soldering requirements

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Pim van Pelt
2017-11-28 01:15:00 +01:00
parent 6d3b693850
commit fac8d3b593
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@ -23,7 +23,7 @@ a great platform to showcase the power of Mongoose OS.
### Hardware: Observations ### Hardware: Observations
The Huzzah32 uses its SPI bus to communicate with the touch sensor and the The Huzzah32 uses its SPI bus to communicate with the touch sensor and the
TFT screen. It's `MOSI`, `MISO` and `SCLK` pins are shared with the other TFT screen. Its `MOSI`, `MISO` and `SCLK` pins are shared with the other
devices, and it selects which slave device to communicate with by means of devices, and it selects which slave device to communicate with by means of
three `CS` pins. three `CS` pins.
@ -45,6 +45,14 @@ Peculiarities of the hardware setup:
output to an ADC pin (A13 / GPIO35) using a 1:1 voltage divider (so a output to an ADC pin (A13 / GPIO35) using a 1:1 voltage divider (so a
full LiPo battery at 4.2V will read out at 2.1V on the ADC channel. full LiPo battery at 4.2V will read out at 2.1V on the ADC channel.
#### Soldering Requirements
The `LITE` and `IRQ` pads on the TFT Featherwing have to be soldered to
connect them to the Huzzah32:
* Solder the `IRQ` pad to pin 23.
* Solder the `LITE` pad to pin 22.
### General Design ### General Design
To showcase the idiomatic use of Mongoose OS, we will to do the following: To showcase the idiomatic use of Mongoose OS, we will to do the following: