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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)
; | E/ _) \% u6 k. H; Y' @# a- #include <ESP8266HTTPClient.h>
. Y' {! b6 U6 V, N' b - #include <ESP8266WiFi.h>
; w" N0 f8 c7 r* O2 V/ x+ [ - #include <ESP8266WiFiMulti.h>
8 c8 @5 \ H0 }/ p4 K1 A. z( X - #include <ESP8266WebServer.h>
; L! v+ _: f" _" N2 h) U0 f2 @* R - #include <arduino.h>
u3 l% ~; f9 F1 ? - ESP8266WiFiMulti WiFiMulti;* \$ K, c3 x1 R5 G
- ESP8266WebServer server(80);7 s* o) p* L7 [7 l7 {
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 A( `$ {, G5 u- C - ADC_MODE(ADC_VCC);
1 q6 Q! Z- l# V# q3 s7 _- f - void setup() {( g! x o; b' Y G9 Y, o# T+ X
- Serial.begin(115200);6 s( G3 a1 {7 I' _9 p
- Serial.print("\r\n\n");! O3 m. [' X* U
- pinMode(2,OUTPUT);6 C& e, o/ H7 K; W7 o
- // WIFI
* w; p, j- b9 Q4 M2 d4 r - WiFi.mode(WIFI_STA);" A# g. J3 |# ~& W/ b- k* V- N
- WiFi.hostname("Sparkle");
" ~& M2 `1 o, ^# W - WiFiMulti.addAP("wifi ssid", "wifi password");
# {& B0 a; o/ r- }7 \ - int tryNum = 15;
5 [: y+ [8 ] z& A% R) T$ p - Serial.print("Connect WiFi");
8 B) S! P! d4 f Z& _) J2 C. N - while (WiFiMulti.run() != WL_CONNECTED) {: U, g5 i' j3 g* x5 B
- digitalWrite(2,0);8 |) V% d, H4 O7 T/ X. B; [
- delay(200);4 h6 S7 z& x2 r3 C
- digitalWrite(2,1);
5 v3 c9 b. \, C) \' n1 X' ~' m - delay(300);4 y9 r; F& C; h5 C# Q9 A
- Serial.print(".");. o/ I. [: N" o
- tryNum--;. O/ N9 `, j- ~6 _5 B
- if (tryNum == 0) {+ @( H- g+ S" a' K5 u
- // 1min' Z6 O# n" p, ]
- // ESP.deepSleep(60e6);
8 w" g( o+ R. z4 T! [ - ESP.deepSleep(0);# P! Z8 ~: K/ c1 ?% n
- }# o% R- d; F6 {7 B# q
- }
0 U# U+ r7 B/ l7 D8 R - Serial.print("\r\n");) u- p" k7 C; `# d9 }# Z. {' @
- digitalWrite(2,1);: _+ w0 }/ M. F" h- }3 F% z
- Serial.print("IP address : ");
8 g' `( ~5 T& ^* d' o+ V) ^( v - Serial.println(WiFi.localIP());
' @* a* c: u& C$ b8 q2 u/ B2 v: | - server.on("/", HTTP_GET, [](){
, ?# L0 h4 n+ w$ I" o& n - server.sendHeader("Connection", "close");0 G8 w& V% d8 g. g8 M! n
- server.send(200, "text/html", serverIndex);' ]( K% D- P! K) h% Q
- });% o/ ]- @9 E. i4 X
- server.on("/update", HTTP_POST, [](){5 `& U, F$ Y9 ?- r; K
- server.sendHeader("Connection", "close");; `8 h/ g) N+ X: ?, ?0 X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' o# J- K( x: ?9 L2 H7 j - ESP.restart();
* R4 L4 T4 d, S; R( V5 ^3 W+ m - },[](){
: b$ K) B1 z5 a$ A( t( I E - HTTPUpload& upload = server.upload();
, j4 U; H: B; X - if(upload.status == UPLOAD_FILE_START){
; f7 r7 M; L& M# b ^7 ? - Serial.setDebugOutput(true);9 S% b: q% A f* _% x; T( O: \
- Serial.printf("Update: %s\n", upload.filename.c_str());% ?1 c( |& n# y8 K! w3 Z. Y, u- @
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 F7 r; O4 W: w - if(!Update.begin(maxSketchSpace)){
/ M/ `1 N9 U+ z) Q8 ~ - Update.printError(Serial);8 g% D- T8 @8 R1 D: ]' x
- }( j- y) o" F* T' ]0 v7 ]6 X9 j$ w
- } else if(upload.status == UPLOAD_FILE_WRITE){3 b" ?5 ?4 K4 v6 y# y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" b, h$ X* t( m2 B9 I+ | - Update.printError(Serial);8 V" {' X* C1 g9 ?4 d4 N
- }
9 s, g" K; g; a; w - } else if(upload.status == UPLOAD_FILE_END){
5 Z' ?& ?, ^" D* j - if(Update.end(true)){
9 C( |% C! l8 C" F8 P# U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. P* Y' ]0 v$ ^- `( q
- } else {, d) n5 ~9 v6 d$ O
- Update.printError(Serial);) {3 }) U! E3 p9 q9 F+ d
- }5 {- M1 `# J3 j( `: S2 a
- Serial.setDebugOutput(false);
( ?& S9 o8 T4 k - }
, A3 q0 O! h) q' L0 @ - yield();
, N1 C! F w1 @2 O4 f1 W7 U - });
( \( _+ l% ?; O -
8 S) g2 ~* e! q8 N! G& J - digitalWrite(2,0);1 e' f: V% a- Z
- mainAction();
' C: f, g" [' n. C" { - if (digitalRead(0)){
. X2 o. |" P& ~& x; L - ESP.deepSleep(0);/ a2 T& k& D1 u8 J/ o4 K; }
- } else {
$ Q! o6 `$ ~( o - server.begin();
/ q, P1 A5 M! b/ P! ^ - }
& W% L! o! }! _0 {" | - }
( b3 X; B7 v% j; k8 z. \! U- F+ b - void loop() {
% D$ [( m: y3 H! z$ E' A - server.handleClient();, F: H2 n* V% S7 ~
- delay(1);
1 Q. g* Z T# K1 U, a9 S - }
) ?5 p7 A- t( v - String doGet(String url){- z) x4 ]' p! ]- e
- if ((WiFiMulti.run() == WL_CONNECTED)) {
V0 t7 N* P' i9 q - HTTPClient http;
* I3 z7 M! g: `% L7 \% ~0 _7 @ - Serial.println("[HTTP] begin...");
1 N$ e7 `& b9 n+ @8 E - if (url.startsWith("https")) {
7 R8 e4 g) P: Y8 H' s, Y b - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 `/ _9 _; P8 x
- } else {$ G0 m8 Y+ U" u# Z8 A: v8 ]2 H
- http.begin(url);
/ z! [2 I) f! A p/ `& N1 n$ w) u - }; `0 y4 z+ M( ^0 d) g- c7 ?0 ?, b
- Serial.println("[HTTP] GET...");
6 B- d( W! C2 h% k' l! T - int httpCode = http.GET();
6 D/ g/ S! i; i& F! P8 h7 c# x - if (httpCode > 0) {
+ F1 u4 [& _' F% X9 A. C5 [& `; b/ V - Serial.printf("[HTTP] code: %d\n", httpCode);
. ?& ~) ?8 O; v) v7 p - if (httpCode == HTTP_CODE_OK) {% t3 ?/ y! E& e, h
- String payload = http.getString();" V8 `8 M3 c/ F9 G2 T
- Serial.println(payload);
0 _/ g6 S" B' B2 A - Serial.print("\r\n");
6 Y; C2 E& J" L* r, B - return payload;% \, H* [( ^/ F2 D/ d/ {0 {( ~
- }
$ C$ K# v/ f$ O8 ^1 @1 q, Y% A" t - } else {0 r/ f ?! }" c7 `3 G. Y8 ?
- Serial.printf("[HTTP] GET... failed, error: %s\n",# T( c5 h7 k! Y
- http.errorToString(httpCode).c_str());* `" S# A8 u/ D( e. H
- }
2 \; c; m1 E, g N - http.end();) l! |) w( q9 e
- return "";
* J) ~* O4 {) k* X6 V8 O0 F - }+ `3 V6 l% Z: V
- }
9 t, w7 g6 v# R4 Q) g - void mainAction() {% B4 Q4 [, o) E. t1 d: O
- // 发送请求$ m6 o- e& K. L* \2 v" V
- doGet("http://google.cn");
g6 n% p n7 g, I5 Y- H) t# k - }# @9 H9 K1 W Z
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