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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)9 r4 @) v. R! a! {
- #include <ESP8266HTTPClient.h>
$ b; U1 b) R! g - #include <ESP8266WiFi.h>
+ H9 D' K; w1 d1 B- [! d" d - #include <ESP8266WiFiMulti.h>
( Z2 H+ S; k7 P- e - #include <ESP8266WebServer.h>/ o9 k" H6 J1 p' K" \9 a9 n' ~
- #include <arduino.h>" i( f0 M0 c2 J H. O4 d
- ESP8266WiFiMulti WiFiMulti;
9 |% c9 d5 F7 Z9 J5 f: x9 ^1 y - ESP8266WebServer server(80);
& p6 N* _0 c6 K: }7 r$ C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. ]( ?8 X3 R, ~8 L
- ADC_MODE(ADC_VCC);; P5 i- Y1 R3 W* J
- void setup() {7 ?7 E+ u6 k. g& M/ b, l
- Serial.begin(115200);
8 r1 L* m1 w; c# e - Serial.print("\r\n\n");8 x+ i+ s5 ?# Z' b% a" i% M
- pinMode(2,OUTPUT);" P* J) {5 [$ n( ^% f# F2 \9 [
- // WIFI
' `) @; ~( M5 W5 Z. H - WiFi.mode(WIFI_STA);# E% S" o7 c1 n
- WiFi.hostname("Sparkle");5 h* C+ P5 }6 `* n" V% F
- WiFiMulti.addAP("wifi ssid", "wifi password");. J* `0 q' D) U5 y
- int tryNum = 15;5 v: q" @$ X9 H- u- s8 k) x
- Serial.print("Connect WiFi");
, Q+ V! z7 ?9 n8 L9 L - while (WiFiMulti.run() != WL_CONNECTED) {6 L# ~! M |) W/ a0 ~
- digitalWrite(2,0);" V8 F7 m y* H0 f V8 k0 |' z
- delay(200);
" V3 n2 k2 D6 D* O+ A - digitalWrite(2,1);3 x7 P0 Y( z/ E6 P3 l, p5 ^
- delay(300);
$ j7 q+ t- C: m( y; T2 a - Serial.print(".");% ~# @) ~. r6 `, ^7 R
- tryNum--;( X# Y/ h1 _" K6 j, [9 N; H
- if (tryNum == 0) {% W/ f; e/ }+ G8 b
- // 1min. X& e# P' j, t
- // ESP.deepSleep(60e6);
8 g4 Z* T5 q& Y7 l0 q. ] - ESP.deepSleep(0);0 a( U4 ]1 s+ p- ]' y. j
- }
5 H5 I) F, | e3 _) X - }! A& r& A! }% h- _
- Serial.print("\r\n");
5 ~, B* h1 i& K, A3 S4 J! u - digitalWrite(2,1);
' t) b" {# G& T3 c) t: h1 H( v5 V - Serial.print("IP address : ");
2 l: E) v/ I ], X c - Serial.println(WiFi.localIP());
8 `4 y3 a' s. w8 B7 U8 N' U3 b - server.on("/", HTTP_GET, [](){* i# Z s' I3 g+ @' r6 ~! {
- server.sendHeader("Connection", "close");
1 ?9 m0 l7 f# k, O - server.send(200, "text/html", serverIndex);
, k% s7 V% ~# j9 [: w, c - });
, n0 N) [7 x' \2 T. D3 l - server.on("/update", HTTP_POST, [](){# ]* F; N4 U+ V
- server.sendHeader("Connection", "close");
/ U; | U" b: L' `0 n9 i5 Y) U- w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* I6 o) }/ [' K1 e2 k" N2 E: k - ESP.restart();
' e G- ?1 K* V9 c5 i, v- M2 h - },[](){
O! P6 ], Z9 l) I0 Q5 J8 ~# N& y - HTTPUpload& upload = server.upload();6 Y- K0 i& Z: T- I% L
- if(upload.status == UPLOAD_FILE_START){
) Y1 K+ v r5 }9 w- H% y, w - Serial.setDebugOutput(true);
$ ~4 \; u+ s7 S$ O - Serial.printf("Update: %s\n", upload.filename.c_str());! Z2 U& u6 Z1 J. C# |& l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& ?, z7 M; O7 ~) X- B% K* A
- if(!Update.begin(maxSketchSpace)){
/ U4 J7 ]" k I- ? - Update.printError(Serial);9 g4 k/ j4 \! ~% U
- }% m+ j9 @8 w% s) C) z$ Q6 R
- } else if(upload.status == UPLOAD_FILE_WRITE){3 y. X9 ~. ^1 Q" F& `5 R2 ^1 i* F
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( u5 p+ b* J+ k
- Update.printError(Serial);% y+ m! n s) v, s: T; y* ~
- }
6 R& `4 r# I4 ~( b( @% M1 F - } else if(upload.status == UPLOAD_FILE_END){& J" k7 n# X7 B. ]' E: I6 ?
- if(Update.end(true)){' P% j0 j* H' {9 ?/ ?
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) E7 \* p1 O7 K ]$ R, E - } else {) M3 Y9 a0 \7 k, `& {
- Update.printError(Serial);+ L- }, k; j1 _ j, T3 \
- }9 M; h8 `$ m7 z5 l% V0 L3 _
- Serial.setDebugOutput(false);
% o0 r0 ? r) A$ A7 ?, e! m! u2 J - }" A" |7 [8 T7 @( C6 l
- yield();# R) e: M* V% ?& k
- });7 `# o/ s& Z* d v
- 3 X2 W- x- C9 Y% l* r
- digitalWrite(2,0);
3 i+ r- r7 @% d6 ? - mainAction();7 A+ S! M( r9 B0 W, b
- if (digitalRead(0)){
3 {" _& x9 a; T' e7 l# p1 k5 Z - ESP.deepSleep(0);; x) f# d" v/ v! D$ y) a) J
- } else {
# c, v" b1 E" ?. M - server.begin();
+ G, V7 s3 _+ {5 A$ J& `% b - }6 _ H, \+ Y" S
- }0 t3 b: X9 [" g ]1 w" j) Y
- void loop() {
$ ? Z$ q; M0 L# U3 \. F. o - server.handleClient();
# W: N/ g1 }% p7 k6 l - delay(1);
+ v: u" ?# k) F& Z, e - }( n0 V7 O9 I) @+ t; O) w! B+ D
- String doGet(String url){
: O" p/ l0 G: n8 A7 q1 B - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 y( ~0 M- g% N. S7 n - HTTPClient http;, t' K- ]5 i3 N+ P. Y4 S T
- Serial.println("[HTTP] begin...");8 D5 ?' x. z* }1 [) ?) y' D- Z
- if (url.startsWith("https")) {
$ q* O+ R1 a' S* f7 C& z% I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 @$ `0 x- D' f4 } p! P I( S8 T - } else {
. i% F0 o: x4 r5 H4 a: r - http.begin(url);
: H. R, s0 N+ W# I( y - }
" d" V4 c$ ?! r) S$ ~4 n. w - Serial.println("[HTTP] GET...");
1 O; g& p$ k/ k- C- _0 s8 x - int httpCode = http.GET();/ [7 x7 v' _; p8 {6 |9 A8 u4 L
- if (httpCode > 0) {
: n( R. F2 m* {, A2 J) F - Serial.printf("[HTTP] code: %d\n", httpCode);
, j4 K* I+ x, K - if (httpCode == HTTP_CODE_OK) {6 x9 K) A9 b N" Q+ s) l8 I- Y
- String payload = http.getString();
; l# v: N9 v7 f1 H - Serial.println(payload);- A* @9 n. K) k) w- ~
- Serial.print("\r\n");
, F% N) p4 H1 H+ u - return payload;3 i! o# O$ J+ ~7 y- {, v z8 A
- }
5 c" L3 q0 t' n; {. K - } else {
9 l% q; }9 _) Y6 B" h' h - Serial.printf("[HTTP] GET... failed, error: %s\n",
6 Z7 |' ~2 U' p4 z' N - http.errorToString(httpCode).c_str());6 K6 W5 i& \! Y7 Y4 j4 t4 i
- } ?2 K! v' p+ ^8 c5 b
- http.end();7 ^! r; w9 H ?7 r: v& s/ K K
- return "";
6 X7 z% ^( a* E" v; m5 H - }$ h0 K; _# s; y" y2 W5 r% F2 K/ E
- }# n9 C: U& ~* g) x7 F; m# {
- void mainAction() {+ u* Z4 _ g; n2 t6 r
- // 发送请求
7 N& ]7 Y8 }' r: O3 e: U& [ - doGet("http://google.cn");
. `" R! n3 ?1 _ - }
0 R6 U% \. V: F+ G$ w- X
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