esp8266_power_usage
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esp8266_power_usage [2015/06/16 09:03] tytower [**6.system_deep_sleep**] |
esp8266_power_usage [2015/06/23 19:41] tytower [More data from expressif] |
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| - | There are couple modifications to be made: one required, one suggested. To wake itself up, the ESP8266 uses the XPD pin to trigger its reset line on the rising edge , so those two pins need to be connected together. Wiring up XPD to DTR works. ( Note there is a small capacitor between them on Sparkfuns Thing board on the DTR line) | + | To wake itself up, the ESP8266 uses the XPD pin to trigger its reset line so those two pins need to be connected together. XPD_DCDC connects to EXT_RSTB with 0R\\ |
| + | Wiring up XPD to DTR works. ( Note there is a small capacitor between them on Sparkfuns Thing board on the DTR line) | ||
| ===== More data from expressif ===== | ===== More data from expressif ===== | ||
| - | can be found at \\ [[http://bbs.espressif.com/download/file.php?id=253&sid=398301f84155a628a3a39725226e7379|http://bbs.espressif.com/download/file.php?id=253&sid=398301f84155a628a3a39725226e7379]] | + | can be found at \\ [[http://bbs.espressif.com/download/file.php?id=253&sid=398301f84155a628a3a39725226e7379|http://bbs.espressif.com/download/file.php?id=253&sid=398301f84155a628a3a39725226e7379]]// |
| + | [[http://bbs.espressif.com/viewtopic.php?f=21&t=645|http://bbs.espressif.com/viewtopic.php?f=21&t=645]]// | ||
| - | An extract from which deals with deep sleep \\ | + | An extract from which deals with deep sleep // |
| - | ==== ** 6.system_deep_sleep ** ==== | + | ==== 6.system_deep_sleep ==== // |
| **__Function:__** \\ Configures chip for deep-sleep mode. When the device is in deep-sleep, it automatically wakes up periodically; the period is configurable. Upon waking up, the device boots up from user_init.\\ | **__Function:__** \\ Configures chip for deep-sleep mode. When the device is in deep-sleep, it automatically wakes up periodically; the period is configurable. Upon waking up, the device boots up from user_init.\\ | ||
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| system_deep_sleep(0): there is no wake up timer; in order to wakeup, connect a GPIO to pin RST, the chip will wake up by a falling-edge on pin RST\\ | system_deep_sleep(0): there is no wake up timer; in order to wakeup, connect a GPIO to pin RST, the chip will wake up by a falling-edge on pin RST\\ | ||
| - | ==== ** 7.system_deep_sleep_set_option ** ==== | + | ==== 7.system_deep_sleep_set_option ==== |
| **__Function:__** \\ Call this API before system_deep_sleep to set what the chip will do when deep-sleep wake up.\\ | **__Function:__** \\ Call this API before system_deep_sleep to set what the chip will do when deep-sleep wake up.\\ | ||
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| deep_sleep_set_option(4): Disable RF after deep-sleep wake up, just like modem sleep; this has the least current consumption; the device is not able to transmit or receive data after wake up.\\ | deep_sleep_set_option(4): Disable RF after deep-sleep wake up, just like modem sleep; this has the least current consumption; the device is not able to transmit or receive data after wake up.\\ | ||
| **__Note:__** \\ Init data refers esp_init_data_default.bin.\\ | **__Note:__** \\ Init data refers esp_init_data_default.bin.\\ | ||
| - | Return: true : succeed false : fail\\ | + | **__Return:__**\\ |
| + | true : succeed........ false : fail // | ||
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esp8266_power_usage.txt · Last modified: 2016/07/05 18:38 by tumik