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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)
: H+ t! O8 f/ g- W; \" a- ]- #include <ESP8266HTTPClient.h>
1 {5 m# _7 X$ q$ b: O3 a" | - #include <ESP8266WiFi.h># e4 t# Q- @& S" ~0 B" B% S- N5 a
- #include <ESP8266WiFiMulti.h>3 W. s% l, F& c$ a. e8 p
- #include <ESP8266WebServer.h>, C* O- w& |" k0 k/ w2 s' s3 |
- #include <arduino.h>& J8 B6 J) g% f( [
- ESP8266WiFiMulti WiFiMulti;/ G- A$ m# F% i9 Q
- ESP8266WebServer server(80);
. E7 J$ e; M5 u# z: h/ v5 k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 X5 a* @0 D8 e9 E
- ADC_MODE(ADC_VCC);
/ b5 O! Y5 i/ J$ j) R2 w' U1 k - void setup() {
2 U/ f+ }5 ^: A7 _ - Serial.begin(115200);
4 {: G- Z! J9 B' ?3 B0 O$ I - Serial.print("\r\n\n");
3 b4 ]& U2 h' M' A( j" d- {: ]7 @$ \ - pinMode(2,OUTPUT);
, V: J; Z, e! r - // WIFI/ \% z! S5 D8 u& ^2 ?1 F
- WiFi.mode(WIFI_STA);
5 @1 A/ Q* \5 J; v$ A - WiFi.hostname("Sparkle");
* }% q( E6 L. h, n% h - WiFiMulti.addAP("wifi ssid", "wifi password");) @: }5 `3 o' E# V
- int tryNum = 15;7 P- |5 y, b* H! g4 M2 S) \4 M! h; l
- Serial.print("Connect WiFi");# C2 u8 \, q3 C1 R+ L
- while (WiFiMulti.run() != WL_CONNECTED) {
4 n7 ~7 z/ t- m: {2 v$ K - digitalWrite(2,0);" k# C& R. S' w9 l1 S6 J
- delay(200);
1 r/ G. s0 @6 ^" P0 e) x0 L - digitalWrite(2,1);) V k }9 O! x- k' u5 i. O4 M
- delay(300);" J' G7 N' f8 D
- Serial.print(".");! N! I9 `7 i b; x; q5 U
- tryNum--;
+ j" ?) N' r5 D% n ~/ A - if (tryNum == 0) {
/ C1 G. z- a/ [. o1 m, ^* H - // 1min
0 @. L% x3 z/ ~0 j( r- h* E - // ESP.deepSleep(60e6);
% ^! f1 N6 d' i' E - ESP.deepSleep(0);
) w* `% p. b* B2 N) j4 y z; j$ j - }5 F9 k5 u9 `7 Y7 W+ x8 ?
- }" f& Y- r1 [* D) A% k( L
- Serial.print("\r\n");% j* V2 p! y; M* i7 O: `
- digitalWrite(2,1);
* C! g3 \' U, l" F$ ^" r - Serial.print("IP address : ");4 W+ K, j" E; A, a
- Serial.println(WiFi.localIP());# }6 \( m4 \5 n5 k Z( S
- server.on("/", HTTP_GET, [](){0 j& b8 k) \) N! g5 C
- server.sendHeader("Connection", "close");, i( g8 g2 P8 k; } D- I) O" y
- server.send(200, "text/html", serverIndex);
\0 C1 m% Z) U% b3 g- W - });# G8 |; D8 U/ x, p# P' r! d! l6 E" d
- server.on("/update", HTTP_POST, [](){
2 L( a p/ p4 ~# }7 s4 p" h - server.sendHeader("Connection", "close");
3 [% T: A% k8 z# k! O) f0 [- C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ `% W. J4 f W
- ESP.restart();
7 o; k1 U: g5 Q& V8 Y1 i1 V - },[](){
* v! x, e, j4 i- I; n2 w# v, c - HTTPUpload& upload = server.upload();% }& K6 U: Q2 _6 X( k: Y6 d
- if(upload.status == UPLOAD_FILE_START){5 @% B- x3 g- M/ y5 \7 [) k* ]
- Serial.setDebugOutput(true);! X0 H8 d* Y3 x5 u
- Serial.printf("Update: %s\n", upload.filename.c_str());
# A# a- c. m ?8 i/ y6 v2 v - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# E% C! D6 B% D0 @% ~) g+ d
- if(!Update.begin(maxSketchSpace)){
1 e7 y) s. e+ Q* A. q, A F6 l - Update.printError(Serial);
2 o9 I% b" e$ H0 L2 s+ L# l - }
5 V" V$ _3 P+ I2 C - } else if(upload.status == UPLOAD_FILE_WRITE){
5 p+ ~. H, \0 T* E) B, ?* d - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
Q( P9 b! T) j" b/ X; H - Update.printError(Serial);0 k: x' z% v4 O4 w4 X
- }+ U; O7 Z( D; T5 L0 ^% O
- } else if(upload.status == UPLOAD_FILE_END){
3 T" c4 d N4 R: L" U - if(Update.end(true)){
; v- a f# F2 D1 h/ n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 I% ~# G; v! X% [6 F1 @) k
- } else {
/ |' f; c: y. }3 ^# h {, G - Update.printError(Serial); w. h8 @* z5 s" [* v* s: q
- }# ? a1 |: \# I# n6 p
- Serial.setDebugOutput(false);3 F5 U9 x! u- b
- }
2 N1 C/ h7 `$ { - yield();' E0 U, K' q( f+ Z9 p( Z, L
- });
# E% k' j* a1 Q' ^! A" H -
8 F! O }1 y2 w+ r& z0 W& g - digitalWrite(2,0);& W$ r5 P% H7 M( _3 j6 ]9 u( _+ W" C
- mainAction();/ _& r0 b* @: C$ o2 d+ B$ }; G; L
- if (digitalRead(0)){
}4 E/ u+ q# h8 O" ~ - ESP.deepSleep(0);* L4 [+ x6 L; G& H! h; i' s$ m
- } else {* C, x) p% L) g) N5 w6 l; W" B4 P2 D5 i
- server.begin();2 g" n! ^6 T# Y k. ^
- }
% ?5 M1 O- t, ~# V; [( C - }. c' ]2 A. \1 u L8 A- m
- void loop() {6 L* r* o6 Y; M% y: t0 @% R
- server.handleClient();9 \ O- m! m+ y: p% d- q% R# k
- delay(1);1 I* N: n. M6 f ?6 ~0 [
- }
& _. [- ^9 S/ i7 d* c' Q6 D( }8 G - String doGet(String url){. @( C: z5 l& W$ |$ l8 D! d E
- if ((WiFiMulti.run() == WL_CONNECTED)) {' Y# ?2 ^+ b. K9 L8 f/ L/ N
- HTTPClient http;
* X: _- q# Z9 Y8 U/ g2 E - Serial.println("[HTTP] begin...");
. U8 v5 [% a- l, b - if (url.startsWith("https")) {
4 ?, i- E- A" ]0 H9 Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ Y. k, z+ u8 r9 `; l0 X& E
- } else {% m' k4 a8 |' [% H1 w7 n3 F
- http.begin(url);
) s: {( b$ l- y- z - }
% @- p, I& }' t3 y$ a - Serial.println("[HTTP] GET...");2 K: N; | O, Y0 @
- int httpCode = http.GET();
3 G% h1 s3 E6 N* I0 `1 ` - if (httpCode > 0) {
7 P( ^3 Z# g1 b# A; I9 G - Serial.printf("[HTTP] code: %d\n", httpCode);
9 [3 ~9 a; z% }2 r7 i1 j% W% O" d - if (httpCode == HTTP_CODE_OK) {4 A' G [; d4 b: _" \
- String payload = http.getString();
7 J% w! ]" I# {% j - Serial.println(payload);
* U3 P1 H2 L' f& R( e+ L - Serial.print("\r\n");+ \9 T! D8 O- x$ q! e
- return payload;2 y" o: r* U! k& t9 {3 m* o
- }- b. {& t+ M0 ]/ G
- } else {1 Z6 K1 H) c5 K( X
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 j, {% {( P& }" w - http.errorToString(httpCode).c_str());( ?* F6 f1 v1 i8 W
- }2 g D/ r# ^9 B! m
- http.end(); Y$ ]% [7 Z, O2 {
- return "";
& }7 f* S1 }. U( Q; A - }
, e! X: R- W& Q# X& u3 j - }6 l" W) Y7 N! A$ @, u1 e" r/ j
- void mainAction() {1 \6 k7 W+ N2 o5 ?/ H
- // 发送请求
* c) W' K# o0 D, b+ M! a5 `: x - doGet("http://google.cn");: J; ^0 R3 B6 V# B _' q8 x4 o
- }0 a% [+ U( [5 `. y
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