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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)% t$ a9 Z4 j! L- _
- #include <ESP8266HTTPClient.h>
& C, A; E+ e' C& u6 @ - #include <ESP8266WiFi.h>5 Y8 y( ^4 B; n) D4 ~$ V2 |
- #include <ESP8266WiFiMulti.h>7 {7 z* o! \3 i; g. P- X$ i
- #include <ESP8266WebServer.h>
2 T+ B- j3 t. Y% V8 Q- A' y - #include <arduino.h>
& k. e- x4 y( t+ F1 x% v: n# z" _$ y( S - ESP8266WiFiMulti WiFiMulti;
9 p, C4 G& e ?& }" j- } - ESP8266WebServer server(80);
& [! f' g3 A: Q: d' k3 G: A, c - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ M5 g: Z( U( Q! a) M1 r! Q
- ADC_MODE(ADC_VCC);, B# P; g5 \! G4 i7 S
- void setup() {
6 D! R* y! M3 @% n6 N8 n - Serial.begin(115200);
: D$ y3 P; a4 s$ ~! D - Serial.print("\r\n\n");' M! k0 b0 R1 n1 a* g/ ^
- pinMode(2,OUTPUT);+ ^9 s6 M4 A! ~" ?% w; b
- // WIFI
4 X4 @5 w5 h) ^ R8 v( { - WiFi.mode(WIFI_STA);
) Z) `* Y: e( \5 k2 J7 L - WiFi.hostname("Sparkle");0 F; {0 p7 z7 S. U2 P- {
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 v% X1 k( V! {$ t6 G - int tryNum = 15;4 Y5 S9 f/ W0 C! V
- Serial.print("Connect WiFi");5 y7 h" d- l0 ]1 m, Q
- while (WiFiMulti.run() != WL_CONNECTED) {. g" ^) Q. }/ _! N1 k8 V( z
- digitalWrite(2,0);
0 _" s6 _! k3 S( S2 i, G: L - delay(200);% i$ ]& [. O1 C7 `: c" T! K8 u
- digitalWrite(2,1);) R" ]+ l* w4 _. k0 b' J/ }
- delay(300);5 R ~5 J) V! ^8 a1 H* c% O; f
- Serial.print(".");
9 Q4 T8 i% Y9 D1 d: v" Y7 t0 G - tryNum--;- N3 K8 c& u: d% z" Z7 S
- if (tryNum == 0) {
" _3 C& w5 D& ^" b9 }1 ~) H - // 1min
' v U4 M- y- p* ~. C5 |2 o2 Y( a/ _0 v - // ESP.deepSleep(60e6);
5 o6 W3 L4 |6 T) R6 D8 w - ESP.deepSleep(0);, T1 B8 [" T% {* R
- }+ T& H5 e/ Z8 M2 b6 a
- }
9 r+ U, j! r- E$ | - Serial.print("\r\n");5 f- o) e2 m0 W$ m% g4 `- u
- digitalWrite(2,1);7 \, p9 c: A2 q
- Serial.print("IP address : ");
' t2 T5 o7 ~# H' ~ - Serial.println(WiFi.localIP());
" U# e* D- G5 u4 b3 S P4 { - server.on("/", HTTP_GET, [](){2 c. t* Z7 w P6 |* n c( B: p
- server.sendHeader("Connection", "close");
" Q J1 M2 |6 ?9 |4 m6 F - server.send(200, "text/html", serverIndex);
* j2 x0 V. u$ ]! L - });
5 I B, z' M3 Y( L; s: j, q - server.on("/update", HTTP_POST, [](){
, |3 Y# \* V! Z3 G% u( R - server.sendHeader("Connection", "close");
8 M$ v. j! }& A& e, H' M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' a, c+ f5 D) X' D( K! J - ESP.restart();2 o' M1 x5 {( w
- },[](){
1 r' i% R& K! h7 D. ^ - HTTPUpload& upload = server.upload();
+ u' J6 h+ V. a. Z4 \1 j - if(upload.status == UPLOAD_FILE_START){
2 x' S! a8 ^) P4 {$ m) l9 c - Serial.setDebugOutput(true);+ z; s E9 C8 @- l6 {
- Serial.printf("Update: %s\n", upload.filename.c_str());# |) q. v. D" ^5 U) G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. o8 x3 J/ r' i4 |
- if(!Update.begin(maxSketchSpace)){
6 E0 i; Y5 r0 ~% }8 v `, c - Update.printError(Serial);
9 Y! x4 e# g. S8 y - }% E5 q2 Z& O+ N( I# g! o
- } else if(upload.status == UPLOAD_FILE_WRITE){
& ^7 Z- ~& Q0 a% G - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( o/ V. e8 a/ z5 C0 m: g, }
- Update.printError(Serial);
2 \) s* B6 M3 X. A- D - }
3 ^7 p1 j K) ^$ b8 y6 U - } else if(upload.status == UPLOAD_FILE_END){1 F; C& W( Y0 {% T$ t; _
- if(Update.end(true)){# z1 A4 B$ J' a+ Y/ \* ~5 n5 a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 @7 Q4 ~1 C) o1 y - } else {+ \# W$ ]- E- l6 I. z
- Update.printError(Serial);5 K- n4 ?" Q, ?" |$ k' P
- }
* }3 Y- p/ Z5 Z W9 _$ c2 p - Serial.setDebugOutput(false);
+ U( P, i2 L0 u, X - }& G. k4 S( p* U
- yield();1 a# I- c/ ~2 D6 ]5 N I/ a
- });9 V( P9 }0 F+ j6 p
-
& M( k. |$ t8 L& W - digitalWrite(2,0);2 H# y }' F# ~* e
- mainAction();
6 U+ l2 N: N9 Q8 P. _) r5 M - if (digitalRead(0)){( [! g u7 R) r. A/ _
- ESP.deepSleep(0);: P+ ^% j- r; `: E
- } else {3 d) L: ?" Z( V4 x
- server.begin();
( J* m- }! _; _ M2 Q4 j _ - }
2 ?" [% h- {7 G - }
* C& r1 W6 B6 F1 [# ~* l. I9 H$ s - void loop() {
: b! i7 ?3 `+ u' c6 [, y; ]9 U' h - server.handleClient();
2 A1 u: {- t- a4 w2 B - delay(1);6 x% l7 Z' g' R" O% A0 }- f1 y% t
- }
n! f; ]9 J0 k! G$ Y8 C - String doGet(String url){
; R+ f8 ]4 k5 Q8 G, ~, J - if ((WiFiMulti.run() == WL_CONNECTED)) {# k0 u0 @/ g X2 B) q* r7 p
- HTTPClient http;* F7 k$ M, |: O1 X) n% O
- Serial.println("[HTTP] begin...");
6 Y# d, x% M" I4 F( ?( c- u - if (url.startsWith("https")) {5 C! c" ?7 ?7 |" W1 M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ N: g6 D5 d* O4 q, L% P
- } else {$ y: D' E( t& H# G6 L
- http.begin(url);) u! w7 v( h }6 l* }/ f* G, ~) p: x/ _
- }( P4 Q8 M1 d+ b# v2 O1 J
- Serial.println("[HTTP] GET...");
, B, g$ [$ A: n2 u0 K o - int httpCode = http.GET();8 j5 J: W$ w$ p; {1 R
- if (httpCode > 0) {
! u( ` f) E- g: o7 g - Serial.printf("[HTTP] code: %d\n", httpCode);
- |# V( s1 ?# W s - if (httpCode == HTTP_CODE_OK) {" v3 S5 S/ y- U5 n$ W8 o% n
- String payload = http.getString();& ^& b' V1 h9 G9 `3 a
- Serial.println(payload);
) W V/ H5 w/ G1 I& s1 G - Serial.print("\r\n");8 `7 [! ~ g6 m0 A0 q
- return payload;( S$ z! `; U* y, m$ d, ~
- }! u% J+ p& m, s, {/ S
- } else {& _) J% }) e7 `; s: M0 g8 a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! G% c" } C1 n6 e - http.errorToString(httpCode).c_str());2 q1 a4 z$ Z/ Z2 v+ f/ d
- }
( Y- \, Q( |, o0 b - http.end();
& ^9 p" y7 v" t3 { - return "";
& }. m0 s% E0 ~1 A - }
$ F) h/ `1 }7 s* ^ - }
: p& L7 G! n5 e - void mainAction() {
5 m f: F+ D- N - // 发送请求4 A1 j/ ~! O5 c( M/ U+ @9 R
- doGet("http://google.cn");( y5 E% H& D" s1 t4 @
- }
5 Y; U. T8 ]( }+ Z% p; h
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