as parseInt but returns a floating point value

returns the first valid (long) integer value from the current position. lookahead determines how parseInt looks ahead in the stream. See LookaheadMode

must be called in: slave rx event callback or after requestFrom(address, numBytes)

returns peek of the next digit in the stream or -1 if timeout discards non-numeric characters

everything that needs to run VERY early */

Custom implementation of printf borrowed from the teensy core files

Measures the length (in microseconds) of a pulse on the pin; state is HIGH * or LOW, the type of pulse to measure. Works on pulses from 2-3 microsec

Measures the length (in microseconds) of a pulse on the pin; state is HIGH * or LOW, the type of pulse to measure. Works on pulses from 2-3 microsec

Read data from buffer

must be called in: slave rx event callback or after requestFrom(address, numBytes)

read characters from stream into buffer terminates if length characters have been read, or timeout (see setTimeout) returns the number of characters p

read chars from stream into buffer

as readBytes with terminator character

* @brief Wrapper function for the RAM buffer. Lets you read a byte from a * given memory location * * @param index memory address * @return uint8_

This function is deprecated. New applications should use beginTransaction() to configure SPI settings.

This function is deprecated. New applications should use beginTransaction() to configure SPI settings.

This function is deprecated. New applications should use beginTransaction() to configure SPI settings.

This function is deprecated. New applications should use beginTransaction() to configure SPI settings.

This function is deprecated. New applications should use beginTransaction() to configure SPI settings.

This function is deprecated. New applications should use beginTransaction() to configure SPI settings.

* Sets the TWI timeout. * * This limits the maximum time to wait for the TWI hardware. If more time passes, the bus is assumed * to have locked up

* @brief If you have allocated flash space in the far progmem, above 64kiB, * you can't just pass your flash space array to the constructor because a

private method to peek stream with timeout

private method to read stream with timeout

Converts c to a 7-bit unsigned char value that fits into the ASCII character set, by clearing the high-order bits.

Converts the letter c to lower case, if possible.

Converts the letter c to upper case, if possible.

Write to the SPI bus (MOSI pin) and also receive (MISO pin)

Write to the SPI bus (MOSI pin) and also receive (MISO pin)

static */

* Function twi_attachSlaveRxEvent * Desc sets function called before a slave read operation * Input function: callback function to use * Out

* Function twi_attachSlaveTxEvent * Desc sets function called before a slave write operation * Input function: callback function to use * Ou

* Function twi_manageTimeoutFlag * Desc returns true if twi has seen a timeout * optionally clears the timeout flag * Input clear_f

* Function twi_readFrom * Desc attempts to become twi bus master and read a * series of bytes from a device on the bus * Input addr

* Function twi_slaveInit * Desc sets slave address and enables interrupt * Input none * Output none */

* Function twi_setFrequency * Desc sets twi bit rate * Input Clock frequency * Output none */

* Function twi_setTimeoutInMicros * Desc set a timeout for while loops that twi might get stuck in * Input timeout value in microseconds (0 m

* Function twi_transmit * Desc fills slave tx buffer with data * must be called in slave tx event callback * Input data: pointer to