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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)0 l9 A/ C& y! U. m& `8 n& ~
- #include <ESP8266HTTPClient.h>
8 T( M: d# B- J. N/ b - #include <ESP8266WiFi.h>
! P; r: i1 ^: h% ]+ S. E/ w. N - #include <ESP8266WiFiMulti.h>
/ B4 z1 w4 e {2 U6 T$ R# H8 w - #include <ESP8266WebServer.h>/ R) t8 P) f" J" \+ {( n
- #include <arduino.h>3 q* ?* a ~" [9 K% c
- ESP8266WiFiMulti WiFiMulti;
: s: c9 a3 `3 X S2 Y. o - ESP8266WebServer server(80);
1 r1 o( Y1 p: { - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 n+ q4 k" I+ V! F1 ~) s
- ADC_MODE(ADC_VCC);
9 ?9 @" J' y3 x/ U h/ T) k - void setup() {/ z# o( X' D5 q% }4 C
- Serial.begin(115200);3 h, K8 Y* ] K% w
- Serial.print("\r\n\n");
- {5 U0 Z9 M; \& i( A( i q& W* i - pinMode(2,OUTPUT);# ` B' s2 c# Z/ n3 _$ m$ g
- // WIFI, `& l4 W- P4 m" a4 c3 }" F3 [
- WiFi.mode(WIFI_STA);
}2 G- Z7 v1 N; {0 p# ?" G - WiFi.hostname("Sparkle");
7 ?4 j, P) u; c" g4 o) Y5 o: Z - WiFiMulti.addAP("wifi ssid", "wifi password");9 _1 F0 R; {: W' X9 G
- int tryNum = 15;4 U* i3 d) w. |
- Serial.print("Connect WiFi");
# E8 n* [; g, b+ O1 J, Y6 p - while (WiFiMulti.run() != WL_CONNECTED) {% _7 u* e; [: x* M% H- F* s8 v
- digitalWrite(2,0);& N9 `" b# Z2 S0 ?6 Q6 w; |' L: [
- delay(200);
# D: V) | C8 K9 S0 [% |+ ~$ `6 C0 _) j - digitalWrite(2,1);
6 d: K$ e& I$ Z/ s! q* E - delay(300);
) b2 ]4 x8 p! V8 }7 p - Serial.print(".");, L4 k+ W5 e8 ^8 |& W) h) }
- tryNum--;
- } _% B+ q$ G - if (tryNum == 0) { Y' C* P) d) k; ]' J( T% t7 _
- // 1min* n9 F: Q; I# N' e0 K9 a
- // ESP.deepSleep(60e6);- G; C% Y' \# g6 u$ H. c
- ESP.deepSleep(0);$ {2 t. @- j2 Q6 s
- }% l2 _: }2 l6 ^: Y& @3 P0 k
- }7 d: }7 ^0 V7 B0 U& f: `9 k/ G
- Serial.print("\r\n");7 S7 ]1 `- y8 s2 a( B
- digitalWrite(2,1);* B8 e- D& E4 I8 }2 i! u
- Serial.print("IP address : ");
* o+ @# y+ g8 Q7 ^2 G - Serial.println(WiFi.localIP());" F% l0 I# B6 U. H" E' q
- server.on("/", HTTP_GET, [](){, B5 U* G9 b+ P I3 V& a/ j* R
- server.sendHeader("Connection", "close");! M6 I, |6 R& B" [
- server.send(200, "text/html", serverIndex);
" J& k* o" \4 ^* G - });
. g4 k3 ?9 f5 E# Y - server.on("/update", HTTP_POST, [](){
) S5 a8 f$ m! e$ b) {/ z - server.sendHeader("Connection", "close");2 w: K. X; n8 m) \) E+ h
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ w$ S4 |! m$ E
- ESP.restart();
% N/ Y& T9 q$ X9 s - },[](){7 J2 L7 C8 A) P# R/ W2 x
- HTTPUpload& upload = server.upload();% R% ~- \. N! s+ ] I, j( a+ Q, o, P
- if(upload.status == UPLOAD_FILE_START){
7 r7 B. L$ ]$ y - Serial.setDebugOutput(true);* m! d6 w; K" C) `0 f! `
- Serial.printf("Update: %s\n", upload.filename.c_str());0 W5 N6 r2 m5 Q) X9 H# `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 ?1 l5 m' l: c/ b4 C6 c - if(!Update.begin(maxSketchSpace)){! C6 y8 F% e: o( i _9 ?
- Update.printError(Serial);
) Z; U& }% l6 a) |' h - }
# o% ~; A0 g' @$ _( m - } else if(upload.status == UPLOAD_FILE_WRITE){: X7 W4 a2 B. j$ Q" ^% k: L- c6 E1 ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ C# h, P5 {' d - Update.printError(Serial);
8 }. D* q& X* m# g/ a - }
, P" t' L |# r9 u - } else if(upload.status == UPLOAD_FILE_END){/ [% G8 n+ j5 J- R9 H; R
- if(Update.end(true)){
: @2 x' n/ v7 k+ T5 K2 F; q# F - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ O2 ~- K* p* R& J- b. Z
- } else {
- s4 d2 X- X! k# M6 R - Update.printError(Serial);# `1 p, ~1 r7 ^9 J7 X( P; a
- }
) ]1 _5 O1 O& R z( E - Serial.setDebugOutput(false);7 I% Z- N4 ?! o) | t* z
- }" _* F( H6 y+ E6 S% q6 H% T
- yield(); e0 M4 S4 ^- n# [6 y- D
- });
' {- ^) }, x3 _6 o -
& B7 C/ V0 H* N8 s% I" z. ~ - digitalWrite(2,0);
3 f9 H. U3 ~3 |9 P6 ` - mainAction();
; L" l4 F) i+ i4 }" G. C# g - if (digitalRead(0)){
- R- V0 n9 l+ `+ t, L a - ESP.deepSleep(0);
2 W# c! M' n4 h, ] - } else {
$ [4 A- D$ {, n' {* @( ?/ I - server.begin();
0 u7 \) L l/ p0 Y - }
* [1 J6 `; V6 u% ^- o) M9 T' G - }( k) E3 j6 W: p# l! y1 t8 q
- void loop() {, p4 U0 b) t$ F+ Y) L' E4 h
- server.handleClient();
+ K, j" w$ u! M' Y/ `# f - delay(1);
, D! e9 J, o" C+ e/ k3 _4 G - }; x4 t) w' `! `6 Z+ |
- String doGet(String url){
4 ^- o6 {5 ?# _1 d2 x* r - if ((WiFiMulti.run() == WL_CONNECTED)) {6 y: c. [6 ]' o2 H0 m: z
- HTTPClient http;
+ k5 s- ~# q( |$ v) m - Serial.println("[HTTP] begin...");
/ Q, {( \! O3 }4 y) `2 N5 H - if (url.startsWith("https")) {# g; n( v L7 C
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 d" t1 B# d7 C1 z - } else {1 ?: M0 ^! {, X' D9 R7 g
- http.begin(url);+ o6 i% d. r5 ~1 J% v3 K2 Y5 s
- }
- s1 B% z! M/ N( r - Serial.println("[HTTP] GET...");
9 m6 r1 c. [$ H - int httpCode = http.GET();( a7 A1 l6 i8 h, y. _ x
- if (httpCode > 0) {3 C! M# z0 W% S6 p: D3 M+ y8 x5 z
- Serial.printf("[HTTP] code: %d\n", httpCode);' `6 N7 F. U. W5 \6 Y: G
- if (httpCode == HTTP_CODE_OK) {" |" m0 O% w/ @; ?5 ]' H1 e
- String payload = http.getString();" M: h9 f4 f4 z& A
- Serial.println(payload);! I) y0 B3 v: ?( D6 h+ t! |" v
- Serial.print("\r\n");
5 B: L. q4 C; V+ O$ U - return payload;( i9 _' L# f5 L$ s2 |1 v& ^. G( P
- }
6 W" U* _% v" |- M1 R0 Y( z: K - } else { |* u! `) h$ A
- Serial.printf("[HTTP] GET... failed, error: %s\n", o8 Q& ^' a) e/ n6 `- t* k% E. X
- http.errorToString(httpCode).c_str());
6 |0 V& h# r/ I$ ^1 Z - }4 c# X' Q9 y7 e `
- http.end();% O3 W* ?6 V0 J( k3 ` k& q6 m
- return "";
r6 v+ R9 _- |( z! {5 v1 K' T - }
& V+ R% b/ `! {. |1 K( g/ c - }
# ?" x& {7 `2 d# a - void mainAction() {) k( v! W9 K( ]: I. x4 @
- // 发送请求
- V1 _8 u8 N! K2 Z0 l& D' t - doGet("http://google.cn");0 E0 X5 n! b/ _% ?/ z3 a
- }
" i( v* s5 K3 R0 t% C# b
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