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Fix wifi connectivity problem and initial 60s delay of data fetching #2

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889378b
Fix wifi connectivity problems and initial 60s delay
Jul 29, 2026
1f01ad5
Fix formatting
Jul 29, 2026
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36 changes: 20 additions & 16 deletions Software/hackerspacemap2026/hackerspacemap2026.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -206,7 +206,7 @@ uint32_t tick=0; // 10 ms each
uint32_t tickflag=0;
uint32_t tockticks=0; // 6000 ticks is one tock
uint32_t tock=0; // 60s each;
uint32_t tockflag=0;
uint32_t tockflag=1; // 1 so that data will be fetched at first loop cycle

void IRAM_ATTR HandleTimer(void) {
tick++;
Expand Down Expand Up @@ -301,21 +301,21 @@ static spi_transaction_t ledStringSpiTransaction;
// initialize the hardware to drive a led string
void SpiLedStringInitialize(void) {
ledStringSpiBusCfg = {
.mosi_io_num = LEDSTRINGPIN,
.miso_io_num = -1,
.sclk_io_num = -1,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.max_transfer_sz = LEDSTRINGBITS
};
.mosi_io_num = LEDSTRINGPIN,
.miso_io_num = -1,
.sclk_io_num = -1,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.max_transfer_sz = LEDSTRINGBITS
};
ledStringSpiInterfaceCfg = {
.command_bits = 0,
.address_bits = 0,
.mode = 0,
.clock_speed_hz = 3200000,
.spics_io_num = -1,
.queue_size = 1
};
.spics_io_num = -1,
.queue_size = 1
};
ledStringSpiTransaction = {
.flags=0,
.cmd=0,
Expand All @@ -327,11 +327,11 @@ void SpiLedStringInitialize(void) {
.rx_buffer=(void*)0
};

esp_err_t err;
err = spi_bus_initialize(SPI2_HOST, &ledStringSpiBusCfg, SPI_DMA_CH_AUTO);
ESP_ERROR_CHECK(err);
err = spi_bus_add_device(SPI2_HOST, &ledStringSpiInterfaceCfg, &ledStringSpiDevice);
ESP_ERROR_CHECK(err);
esp_err_t err;
err = spi_bus_initialize(SPI2_HOST, &ledStringSpiBusCfg, SPI_DMA_CH_AUTO);
ESP_ERROR_CHECK(err);
err = spi_bus_add_device(SPI2_HOST, &ledStringSpiInterfaceCfg, &ledStringSpiDevice);
ESP_ERROR_CHECK(err);
}

// update the actual screen by starting the data transfer
Expand Down Expand Up @@ -475,6 +475,10 @@ void setup(void) {
strcpy(ssid,"mywifi"); // your default network SSID (name of wifi network)
strcpy(password,"mywifipassword"); // your default network password

WiFi.mode(WIFI_STA);
delay(500);
esp_err_t err = esp_wifi_set_max_tx_power(40);

ConnectWifi();

prev=millis();
Expand Down