diff --git a/docs/en/modules/dac.md b/docs/en/modules/dac.md
index c4122c0e..f7a73016 100644
--- a/docs/en/modules/dac.md
+++ b/docs/en/modules/dac.md
@@ -11,7 +11,7 @@ Each DAC is assigned to a dedicated GPIO:
 
 The DACs are 8-bit, thus the output values are restricted to the range from 0 to 255.
 
-## dac.disablee()
+## dac.disable()
 Disables DAC output on the related GPIO.
 
 #### Syntax
diff --git a/docs/en/modules/i2s.md b/docs/en/modules/i2s.md
index 931f32e3..5900b685 100644
--- a/docs/en/modules/i2s.md
+++ b/docs/en/modules/i2s.md
@@ -22,7 +22,7 @@ i2s.start(i2s_num, cfg, cb)
 #### Parameters
 - `i2s_num` I2S peripheral 0 or 1
 - `cfg` table containing configuration data:
-    - `mode` I2S work mode. Optional, defaults to `i2s.MODE_MASTER + i2s.MODE_TX` when omitted
+    - `mode` I2S work mode. Optional, defaults to `i2s.MODE_MASTER + i2s.MODE_TX` when omitted.
         - `i2s.MODE_MASTER`
         - `i2s.MODE_SLAVE`
         - `i2s.MODE_TX`
@@ -30,33 +30,33 @@ i2s.start(i2s_num, cfg, cb)
         - `i2s.MODE_DAC_BUILT_IN`
         - `i2s.MODE_ADC_BUILT_IN`
         - `i2s.MODE_PDM`
-    - `rate` audio sample rate. Optional, defauls to 44100 when omitted
-    - `bits` bits per sample. Optional, defaults to 16 when omitted
-    - `channel` channel format of I2S stream. Optional, defaults to `i2s.CHANNEL_RIGHT_LEFT` when omitted
+    - `rate` audio sample rate. Optional, defauls to 44100 when omitted.
+    - `bits` bits per sample. Optional, defaults to 16 when omitted.
+    - `channel` channel format of I2S stream. Optional, defaults to `i2s.CHANNEL_RIGHT_LEFT` when omitted.
         - `i2s.CHANNEL_RIGHT_LEFT`
-	- `i2s.CHANNEL_ALL_LEFT`
-	- `i2s.CHANNEL_ONLY_LEFT`
-	- `i2s.CHANNEL_ALL_RIGHT`
-	- `i2s.CHANNEL_ONLY_RIGHT`
-    - `format` communicarion format. Optional, defaults to `i2s.FORMAT_I2S + i2s.FORMAT_I2S_MSB` when omitted
+        - `i2s.CHANNEL_ALL_LEFT`
+        - `i2s.CHANNEL_ONLY_LEFT`
+        - `i2s.CHANNEL_ALL_RIGHT`
+        - `i2s.CHANNEL_ONLY_RIGHT`
+    - `format` communication format. Optional, defaults to `i2s.FORMAT_I2S + i2s.FORMAT_I2S_MSB` when omitted.
         - `i2s.FORMAT_I2S`
         - `i2s.FORMAT_I2S_MSB`
         - `i2s.FORMAT_I2S_LSB`
         - `i2s.FORMAT_PCM`
         - `i2s.FORMAT_PCM_SHORT`
         - `i2s.FORMAT_PCM_LONG`
-    - `buffer_count` number of dma buffers. Optional, defaults to 2 when omitted
-    - `buffer_len` size of one dma buffer. Optional, defaults to rate/100
+    - `buffer_count` number of dma buffers. Optional, defaults to 2 when omitted.
+    - `buffer_len` size of one dma buffer. Optional, defaults to rate/100 when omitted.
     - `bck_pin` clock pin, optional
     - `ws_pin` WS pin, optional
     - `data_out_pin` data output pin, optional
     - `data_in_pin` data input pin, optional
-    - `dac_mode` DAC mode configuration. Optional, defaults to `i2s.DAC_CHANNEL_DISABLE` if omitted
+    - `dac_mode` DAC mode configuration. Optional, defaults to `i2s.DAC_CHANNEL_DISABLE` when omitted.
         - `i2s.DAC_CHANNEL_DISABLE`
         - `i2s.DAC_CHANNEL_RIGHT`
         - `i2s.DAC_CHANNEL_LEFT`
         - `i2s.DAC_CHANNEL_BOTH`
-    - `adc1_channel` ADC1 channel number 0..7. Optional, defaults to off is omitted
+    - `adc1_channel` ADC1 channel number 0..7. Optional, defaults to off when omitted.
 - `cb` function called when transmit data is requested or received data is available
     - the function is called with parameters `i2s_num` and `dir`
         - `dir` is "tx" for TX data request. Function shall call `i2s.write()`.
@@ -69,7 +69,7 @@ An error is thrown in case of invalid parameters or if the channel failed.
 
 
 ## i2s.stop()
-Stop I2S bus
+Stop I2S bus.
 
 #### Syntax
 `i2s.stop(i2s_num)`
@@ -84,7 +84,7 @@ An error is thrown in case of invalid parameters or if the channel failed.
 
 
 ## i2s.read()
-Read data from data-in
+Read data from I2S receive buffer.
 
 #### Syntax
 `i2s.read(i2s_num, size[, wait_ms])`
@@ -92,14 +92,14 @@ Read data from data-in
 #### Parameters
 - `i2s_num` I2S peripheral 0 or 1
 - `size` Bytes to read
-- `wait_ms` Millisecond to wait if data is not ready. Optional, defaults to 0 (not to wait) if omitted.
+- `wait_ms` Millisecond to wait if data is not ready. Optional, defaults to 0 (not to wait) when omitted.
 
 #### Returns
 Data read from data-in pin. If data is not ready in `wait_ms` millisecond, less than `size` bytes can be returned.
 
 
 ## i2s.write()
-Write to I2S bus.
+Write to I2S transmit buffer.
 
 #### Syntax
 `i2s.write(i2s_num, data)`