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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 u3 d& F8 `
- #include <ESP8266HTTPClient.h>2 k7 [9 R2 Z% _3 ^: J* a; n
- #include <ESP8266WiFi.h>
' q# H Y4 S' U - #include <ESP8266WiFiMulti.h>
7 i" v" ^8 `5 T) z$ Y - #include <ESP8266WebServer.h>
) f7 a, @% O! B. j) r. T - #include <arduino.h>% g6 F% o1 X. F: P# O* F' P
- ESP8266WiFiMulti WiFiMulti;6 C: d4 g$ U: t$ J$ v) ~ i
- ESP8266WebServer server(80);+ {% v2 o% n* C1 S
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; k# U4 k: [* G3 F0 V- H4 w7 g! [, @ - ADC_MODE(ADC_VCC);* |# z% F, U! k: _5 u# z- [
- void setup() {
~ F% s0 y2 L9 x7 G - Serial.begin(115200);
# ^' X) e, I8 @0 I! U! L8 H - Serial.print("\r\n\n");. E" _6 @# E3 G2 f5 ~6 r) {9 r0 I
- pinMode(2,OUTPUT);9 s" j! w- Z3 _( l2 E+ g* Y: O
- // WIFI
7 F# \+ ]/ z9 A0 c$ l - WiFi.mode(WIFI_STA);
0 O4 r6 C) A7 t- f! j - WiFi.hostname("Sparkle");
9 n8 X, P8 ~9 M - WiFiMulti.addAP("wifi ssid", "wifi password");
& m' c/ ?) Z7 s8 T - int tryNum = 15;1 Z" o; [. L' h e1 k8 W" D6 t
- Serial.print("Connect WiFi");+ k' a6 F+ n$ p& N# m& p2 `1 m5 w4 c
- while (WiFiMulti.run() != WL_CONNECTED) {
+ q& I$ m0 X8 ~+ [% L) J& w- r - digitalWrite(2,0);- D. r! e1 E9 w4 ? D2 Q
- delay(200);+ z- b9 R1 ^9 G- r
- digitalWrite(2,1);7 o8 x% ]9 b% j6 W( J
- delay(300);
8 E: [6 O& c8 [& m0 r! O% B/ ~- p - Serial.print(".");% l/ C/ S* m' X
- tryNum--;5 Q" C- a+ d! V
- if (tryNum == 0) {
2 _* O4 l+ x4 S ] - // 1min
# I( m! X+ d a2 A - // ESP.deepSleep(60e6);1 x4 D$ s/ _ u8 }; H
- ESP.deepSleep(0);
2 s) D- }/ ]! r9 ? - }0 x# i! N' M/ |0 f' O2 U4 x
- }
# [4 }& x3 _+ B4 x8 o1 p - Serial.print("\r\n");
! Y. J7 O& m, i - digitalWrite(2,1);
$ U! u. t& }1 c3 @( h o - Serial.print("IP address : ");/ a0 @ U* C* M" W+ l
- Serial.println(WiFi.localIP());* p6 W; @- _5 { x# Z3 K
- server.on("/", HTTP_GET, [](){
! ]. N" x4 u" w - server.sendHeader("Connection", "close");: @0 r; [# ]4 T+ n
- server.send(200, "text/html", serverIndex);) }. B- E$ x, P; S" ~% |2 @1 X) i+ g) y
- });
5 f- m2 v1 L- H; p! C5 ^1 I9 Y7 H - server.on("/update", HTTP_POST, [](){
, r* t1 O: `# W* g9 {# I& u - server.sendHeader("Connection", "close");
( c3 X- {, u; {( {: N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 T+ g% [* _8 M& G
- ESP.restart();
3 X3 S% o1 b6 _) U! v, b4 u - },[](){
. L4 M. s/ j; l0 }7 H - HTTPUpload& upload = server.upload();* R8 C+ Q; z8 D) M' p
- if(upload.status == UPLOAD_FILE_START){
, e2 o! Z2 I1 S0 Q/ m$ d7 l; P - Serial.setDebugOutput(true);
) h1 r0 _0 C7 S9 o# {( i - Serial.printf("Update: %s\n", upload.filename.c_str());
7 N. E0 c& t% f- x - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: {8 b& j- D; {, I) {3 z - if(!Update.begin(maxSketchSpace)){7 {& R( b( r; P
- Update.printError(Serial); @* D k! T% ]' o$ J; B8 ]
- }9 @7 s' @9 ? M3 Y4 J# K8 h2 k1 O
- } else if(upload.status == UPLOAD_FILE_WRITE){
" J" ?, _9 b9 J6 S5 X% Y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ F* Z3 g3 ^& ]% \( \- Y/ o: J, V
- Update.printError(Serial);1 O! a: S% [& x4 }2 J( x& m. d' E
- }$ v' i) {# J. p' f
- } else if(upload.status == UPLOAD_FILE_END){
. i% ?! ~( r+ J3 n, O - if(Update.end(true)){
! c( r+ Z* y0 u8 m1 H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 C/ [; V" A$ S' J
- } else {$ h# Q) I8 @$ k3 T8 u8 A
- Update.printError(Serial);
! \: j% S4 p. Z( y; F% j1 t+ J - }( O' l- W1 W8 B d; y6 j P
- Serial.setDebugOutput(false);
; O& z2 E/ K7 ~ P+ G - }
; j( e3 Z' C' d2 t+ E0 y9 f - yield();+ C A+ X {- d W5 Z
- });! J5 u9 {8 |9 N& h U9 ^/ ?
-
8 U1 @6 a* O! o" M( w - digitalWrite(2,0);* a* }. p6 G+ T
- mainAction();, Z, [; A; b& l5 A% O8 g
- if (digitalRead(0)){
- C6 ^ t' K3 e4 S! |) ?# p% Z) k - ESP.deepSleep(0);
! u8 L! [1 }" o; e6 ^5 ~6 h2 i - } else {
3 d. ^8 U1 _8 d- I+ ` - server.begin();' W2 @4 {) z8 ^1 `
- }
! H2 l, ] U" @0 F - }9 D$ \! x, `" T% Y
- void loop() {4 E9 p, J6 s% S' \
- server.handleClient();
4 z2 Y* H) b+ m4 L - delay(1);/ y: D# C# ? x' c- Q0 H3 z
- }
$ o( u0 g$ X& j6 U+ V1 Q - String doGet(String url){
3 m0 A: S" L/ F3 f - if ((WiFiMulti.run() == WL_CONNECTED)) {/ Q9 s: z) G/ c- A- Q7 e; F
- HTTPClient http;
" A6 ^, L( }' f! m - Serial.println("[HTTP] begin...");
Q+ I9 F* W" ^7 t - if (url.startsWith("https")) {
" [. ^" m0 M2 n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! N0 t1 p' r# X - } else {; }7 V, `% N* x! O
- http.begin(url);- g3 A3 l# W" ]5 d7 t
- } l5 P7 l4 o$ ^
- Serial.println("[HTTP] GET...");
4 d" \& X0 \# ?% I L3 N4 q! J8 l - int httpCode = http.GET();
/ c6 I/ V B0 i% ] - if (httpCode > 0) {) o$ } x0 R3 T
- Serial.printf("[HTTP] code: %d\n", httpCode);% Z" ~6 u4 ^& R6 p/ ^
- if (httpCode == HTTP_CODE_OK) {
3 x. T: t3 c2 E - String payload = http.getString();
4 e# `. k! W. \% B( l - Serial.println(payload);1 u1 \4 a% v8 n7 R9 v+ l1 }( ]$ D
- Serial.print("\r\n");; t. ~- z* l- s3 a. j
- return payload;
2 f* | y( w9 @ N, ~& F% K - }
/ D D6 d) g0 I2 W. w1 D - } else {
' ~0 w3 W' C* b - Serial.printf("[HTTP] GET... failed, error: %s\n",
' m% N; O3 e, u: y/ ]0 _, z3 n8 Z - http.errorToString(httpCode).c_str());0 q2 i( F+ x* j8 x# E
- }' D/ N0 C" `/ }' }# B D
- http.end();% i( U+ R% |3 g+ k* n, k1 ~" I
- return "";9 ^9 f9 C# t% W; ^0 W
- }- Y/ y) j- J$ z3 B
- }/ m+ d/ a6 f$ {2 n/ z% p" s
- void mainAction() {
% C1 S! g1 l! v - // 发送请求1 f$ D/ O4 r7 m4 G/ K2 ]+ B! N) k
- doGet("http://google.cn");
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