ElektorLabs (81)

| Two circuits of energy-saving relays controlled by light or buttons intended for switching on a light for a short duration.

| Energy-saving relays are two-terminal devices that can be connected in any order in series with a load and with a chain of normally closed p...

| This is a mini-NTP based on a ESP32. Time will be provided from the GPS receiver and a DS3231 if no GPS-signal is avaliable, to server time...

| Six-channel temperature monitor, scanner cq data logger for RTD resistive Pt100 sensors.

| Software updates for the ESP32 Weather Station (180468)

| This easy-to build-heat detector does not consume power when idle.

| Next generation USB/Serial Bridge/BOB using a FT231XQ, normal pin headers and a Micro-USB connector. VCCIO is +1.8..3.3 V but 5 V UART logic...

| A small, DS1302-based Real-time Clock (RTC) module with on-board, 20-ppm oscillator.

| Little module that can be configured as a MIDI input or output and with 5-way DIN connector or TRS jack.

| Here is an 8051-series flash microcontroller programmer which can program the AT89C2051, AT89C4051, AT89C51, AT89C52 and AT89S52.