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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)) x1 l& p8 N2 w u# [) {
- #include <ESP8266HTTPClient.h>
4 M, ]5 q7 s& y6 \# ?9 W' w, { - #include <ESP8266WiFi.h>
! _# _. k8 V' ~+ Q - #include <ESP8266WiFiMulti.h>
2 R0 T- ?+ _% l% A. G+ ^ N3 u - #include <ESP8266WebServer.h>$ d0 m( R- k* L" }
- #include <arduino.h>
& X+ \; s q4 h" Q) |$ N; B - ESP8266WiFiMulti WiFiMulti;
7 f; x( T2 J/ G9 I' G' G - ESP8266WebServer server(80);% `% x; Z- D( \9 ^0 ]2 W* [
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* v5 ]/ R5 d- O" C# k9 Z$ G
- ADC_MODE(ADC_VCC);, y F; g* P) X" r
- void setup() {' f, F+ v H( f% a
- Serial.begin(115200);. B" F5 T0 ~/ h2 Y& |% V
- Serial.print("\r\n\n");7 u* H" X0 }% T4 Y2 ~9 U! a" C
- pinMode(2,OUTPUT);
& X+ E( g( S0 x; X1 f& N ~) O - // WIFI5 _0 E/ f G V% Z( u, T+ Q/ T6 C
- WiFi.mode(WIFI_STA);+ m0 |: x$ u* d! M
- WiFi.hostname("Sparkle");# r0 P! R+ a" p" A6 ]6 u& Q. J4 U. K
- WiFiMulti.addAP("wifi ssid", "wifi password");" \/ K# u" u3 x6 }' a8 Q
- int tryNum = 15;& K3 D3 C# L0 W( X. Y
- Serial.print("Connect WiFi");7 ~5 g& b! R5 e: {- k8 ^
- while (WiFiMulti.run() != WL_CONNECTED) {
- ~1 ^1 x9 e) r9 L - digitalWrite(2,0);
5 |2 \* g' G7 Z5 o- \2 ^ - delay(200);
( i6 M ^. d v# P* ] - digitalWrite(2,1);4 t# j2 N( t8 J4 x/ F& d3 P
- delay(300);
, @# D. G% \& l' D! r - Serial.print(".");. M9 m/ f6 y0 R5 q9 H) L
- tryNum--;
# Y- `* }( l1 c. p: Q) } - if (tryNum == 0) {
- r* b0 y4 v+ D/ c7 A. z$ A$ P - // 1min3 F* o! U; u* j, J# X
- // ESP.deepSleep(60e6);+ D0 x U+ L$ `- e9 v0 o$ i. h" K
- ESP.deepSleep(0);
4 B, @) O6 G$ J$ T/ e - }* Z4 G5 v, U$ P% s! y1 R/ A: w
- }/ K0 ~2 N1 E1 a$ f
- Serial.print("\r\n");) f; y$ F5 {8 d, g6 S5 U8 ?
- digitalWrite(2,1);
6 S2 b5 G: S3 ?1 B# K2 r: x - Serial.print("IP address : ");: d R0 h ?! b2 ?
- Serial.println(WiFi.localIP());2 @7 O1 c+ ~$ y8 U u
- server.on("/", HTTP_GET, [](){
( }5 R( l1 I; S0 L+ ]; C, p! u6 S e - server.sendHeader("Connection", "close");7 r" X( S0 j7 L
- server.send(200, "text/html", serverIndex);: h8 O1 w$ J) v' c+ s2 L
- });' u: d( H, v* ?. f$ G; ^1 @) U9 n
- server.on("/update", HTTP_POST, [](){
- g1 C# ~* W, G V - server.sendHeader("Connection", "close");
' n. s) ]' L; U. ~7 H. M8 y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! ^( c6 u" M& [$ i* k
- ESP.restart();
1 n3 D0 t9 x9 S% V( } - },[](){
/ T$ n# H" B; j& J - HTTPUpload& upload = server.upload();
6 x- `4 Z2 V. [" Q! O N - if(upload.status == UPLOAD_FILE_START){
/ t3 A$ e" L' X7 s+ H8 f - Serial.setDebugOutput(true);7 w" b4 c3 \( O; u
- Serial.printf("Update: %s\n", upload.filename.c_str());! T+ G7 w7 o/ a. L9 o$ Q& ^/ d1 A
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 h; M8 @. `/ U; k - if(!Update.begin(maxSketchSpace)){* x; p) [- C% P
- Update.printError(Serial);
8 m" V- _( a/ ~: s& Y. Q - } \/ n! H/ {5 o5 L. ]7 [$ V
- } else if(upload.status == UPLOAD_FILE_WRITE){* z* i2 k" `* E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: G' ]: A7 w7 C# F/ h% I! c - Update.printError(Serial);
- {# {( Z- i/ s. \7 y! t - }) M9 I3 T) f! N: d2 ~" A/ {- T
- } else if(upload.status == UPLOAD_FILE_END){- r! F3 ]( N3 r' r0 y* F
- if(Update.end(true)){2 {9 |+ {. q( W T" `! y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! Z- J3 q( Z$ }, r' w - } else {6 }9 P% V* M% o4 y. |
- Update.printError(Serial);5 |$ f9 ?* o* m' c) v8 l9 i; Y
- }
7 r B) A: V7 M# j0 m - Serial.setDebugOutput(false);
7 |% A; c' p' Z# t8 |! h, H) u - }; l9 K) X Z, I+ i5 w+ u
- yield();* T( T0 ^9 f; b, j3 m; ?
- });5 G& [; Z$ ~. I
- 0 x7 a, V( i( ]
- digitalWrite(2,0);" c9 }" T! {, U9 d/ S0 k4 r5 \, @' u
- mainAction();5 t3 O" P; `; }" ]1 N
- if (digitalRead(0)){2 ]6 T y& _ m8 ^
- ESP.deepSleep(0);
8 \+ ^, E( U0 ~3 [' U - } else {
6 h4 A8 L! d! Z - server.begin();) ]8 [, M4 O- b+ `/ e
- }
' f" H W) J- \+ J) _& n+ y - }
$ ]5 @/ Z7 U7 B - void loop() {
. w9 {, i8 C# w! e* F - server.handleClient();6 @& E6 X- _ L' r4 i- M6 Y! M
- delay(1);
: M9 p* P5 z; ]* ]7 x! W3 v- F - }
, F! W y7 S3 j6 ` - String doGet(String url){
" W Y" n5 g( X0 i; F& W - if ((WiFiMulti.run() == WL_CONNECTED)) {# j/ J( c8 [" \+ M7 w
- HTTPClient http;
. |" v* ?8 ^7 d5 X. t - Serial.println("[HTTP] begin...");
9 A- O# ]# m3 ^/ A" N - if (url.startsWith("https")) {( Q: |4 N+ }1 q6 F3 z2 F/ d
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" l. R: V& \! [- m1 \- e* g
- } else {: y: y$ }. S1 i2 f* |. e2 d
- http.begin(url);7 p2 [7 f k& ^$ O) D! O
- }+ S" |! `. W6 T1 C. g8 Y9 G
- Serial.println("[HTTP] GET...");
! s* H' D4 {& w: ~0 @5 D i( { - int httpCode = http.GET();
" U$ k% `5 g* z& i9 k4 I - if (httpCode > 0) {3 W3 x* x( T% u5 [6 v1 W# \$ E( _
- Serial.printf("[HTTP] code: %d\n", httpCode);/ ~" t6 _+ l5 K1 I, Q
- if (httpCode == HTTP_CODE_OK) {4 P0 D2 h W/ R* p* K3 \
- String payload = http.getString();
) \& y- a( y6 \ - Serial.println(payload);
: J8 e! [: O0 S7 e8 `+ ]8 y3 ?) F - Serial.print("\r\n");- X) Z+ R0 u- h6 Y
- return payload;
% G7 I: p" ?! S: h) N - }1 y( f- P; M" a% {; W# I
- } else {
1 j& a+ t" M5 R5 { A+ J! C: S* q - Serial.printf("[HTTP] GET... failed, error: %s\n",9 U2 N9 p. U' z
- http.errorToString(httpCode).c_str());* H, w; \( a/ f8 T, n5 C6 Q3 ?
- }
6 }' a4 W" n( n! l" v9 j$ B - http.end();
$ P1 H6 Q" M! \; r2 y4 g - return "";% h( W+ y2 Q1 B3 E0 r
- }- {0 p0 ?: I5 T) g
- }: b6 Z! u) g8 W
- void mainAction() {
$ {, ^( }) q4 @3 i( z* H6 h6 C - // 发送请求
) X5 Z7 R$ V8 z% [9 P2 U+ ] T - doGet("http://google.cn");
1 L+ Z" T4 k3 h- E7 c( I - }* d" n8 ~6 \ u# i
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