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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)
X- [( T% g7 v9 I# n' C- #include <ESP8266HTTPClient.h>
) k% `9 c( D3 L0 y/ I% O& c" D$ C - #include <ESP8266WiFi.h>- V, ~6 N6 o+ {! M2 P. }
- #include <ESP8266WiFiMulti.h>/ J# R9 D& a. {1 ?9 q, M" W
- #include <ESP8266WebServer.h>
7 i- F' ~4 x1 Q% B6 d - #include <arduino.h>
1 n/ ?' g* ]. b( a - ESP8266WiFiMulti WiFiMulti;7 K4 t/ j' l, H1 c. n6 y0 W0 ]
- ESP8266WebServer server(80);: o2 N- S+ p- F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# { I n4 B: z4 W" Q( I' s" Z - ADC_MODE(ADC_VCC);
! \6 |: s6 R6 m7 b2 Z! x5 }# b - void setup() {
: z X8 l; q' a& | - Serial.begin(115200);' f: Y0 H( @2 t9 Z
- Serial.print("\r\n\n");
! w6 G4 A; Q& p7 u8 A& [! o) E - pinMode(2,OUTPUT);
& }" s7 @+ H! F* r5 r9 N2 C2 r - // WIFI! e- I1 K; G: n9 R1 ]* o
- WiFi.mode(WIFI_STA);5 w. Z% w! S" `, m" Y
- WiFi.hostname("Sparkle");
9 i& C% y, I1 e. p, @8 g - WiFiMulti.addAP("wifi ssid", "wifi password");
9 b: w0 \1 \$ C5 ], X& E: F - int tryNum = 15;
) V; K8 P9 D' T) p9 B6 K - Serial.print("Connect WiFi");: K' E" V v/ B6 `4 ~
- while (WiFiMulti.run() != WL_CONNECTED) {
, |1 j3 C2 \# w4 \& A. z1 ] - digitalWrite(2,0);
) b, s5 F% y9 P4 b - delay(200);2 [5 ?6 B6 x6 Y
- digitalWrite(2,1);/ c! A/ @1 ] U7 \0 ~1 @5 q. y
- delay(300);8 J4 ?9 s! \2 x
- Serial.print(".");6 Q2 U: R+ i! m9 @- x8 i
- tryNum--;
& H8 E/ H3 c8 a4 l6 L. B/ e1 p - if (tryNum == 0) {
" E! Y2 m8 k* e" b2 R - // 1min5 q6 M6 u* `4 N; [7 K. V
- // ESP.deepSleep(60e6);, e3 H; x+ {; S4 U! ?, x* U# v
- ESP.deepSleep(0);
4 y; q+ r( D3 Z0 H - }
. f8 T# m& ^8 a( I }# X% N - }
& W% Z8 ^6 f l a6 ?5 [ - Serial.print("\r\n");# a" l0 s. P! n; o& z
- digitalWrite(2,1);; e& A6 ^9 l1 m. A! ^( ^ N0 I( T0 |
- Serial.print("IP address : ");
+ C# | P6 f) t+ ^+ x - Serial.println(WiFi.localIP());
" ~8 ?) s6 S' i8 b0 [1 C6 C D2 Q - server.on("/", HTTP_GET, [](){. s+ v- p+ `7 f! j8 {
- server.sendHeader("Connection", "close");8 q- P0 L$ C" I; g# ?( R
- server.send(200, "text/html", serverIndex);
3 s! b6 S7 l a/ t ` - });
4 x& P4 l; f9 i8 M! M) a+ q; D; o/ B - server.on("/update", HTTP_POST, [](){
2 z+ L& c3 c i0 H - server.sendHeader("Connection", "close");
6 E' ?6 t- N" Q2 O1 p, |3 O6 B0 T - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 N; j/ N8 j" K, }& O, i - ESP.restart();
0 b% d8 s0 v9 ^6 L) l! s - },[](){
* N2 k# ~! i) K - HTTPUpload& upload = server.upload();
. a8 ]" X0 ^" F - if(upload.status == UPLOAD_FILE_START){
( T# t6 b4 J5 a0 i, D$ w" X - Serial.setDebugOutput(true);! z$ z. B* r" l9 Z
- Serial.printf("Update: %s\n", upload.filename.c_str());
) a# S0 F1 o& w2 b - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: J& c( y Z- B$ k" {& W6 m
- if(!Update.begin(maxSketchSpace)){
4 \0 A! F4 N. B/ E& i, H - Update.printError(Serial);0 ?( N! p+ p# H6 G! |
- }
# ]# J8 m5 N. }. v7 B& [ - } else if(upload.status == UPLOAD_FILE_WRITE){/ B$ D- g3 u# P. t" F
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 R! R2 O5 o n& f, r3 I; _ - Update.printError(Serial);: Y" o$ F0 H* D0 {' b
- }
M" n& w* C9 N: @; Z2 m' C/ @ - } else if(upload.status == UPLOAD_FILE_END){5 j( M3 h" _& f
- if(Update.end(true)){
! S3 z0 J4 y% _3 n+ N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 C1 V- w; c& O/ y8 f3 h
- } else {+ T% ^* o5 n. Y2 s* `
- Update.printError(Serial);& H! D( f$ a k8 q: f% K
- }& C1 t/ B+ Y9 o( f4 i7 g0 D
- Serial.setDebugOutput(false);
T4 d$ r* t2 f8 E: P - }( [2 s) L- F; n! E
- yield();
- a4 m# u1 E5 [ - });. t+ y3 q. F" d5 e. ?' F) {# U, r" [
- , a( N9 e: B* O) W( I
- digitalWrite(2,0);
; f8 b+ @ w; t) r! H4 S - mainAction();7 k4 m# G- Y. |" j
- if (digitalRead(0)){" `: j/ ^: N) i% {
- ESP.deepSleep(0);, H$ b0 \# h: L
- } else {% [1 c. _9 k" u4 }, W; Y. e/ o
- server.begin();
) @7 H( x! O2 o7 k' u. j - }
" W/ ?7 p3 w8 L9 J* X- h - }0 Q9 m" h/ o, S( M
- void loop() {
5 R+ f* v7 Q1 M- ^5 M m' E5 j - server.handleClient();0 A% h. ^ a) s8 Z
- delay(1);1 K+ e( `6 T# G" H' l5 ^. |
- }+ x- V h8 y; L, u k+ n1 [0 z
- String doGet(String url){
+ s& ^. K7 |& j7 O% R. | - if ((WiFiMulti.run() == WL_CONNECTED)) {9 f* i3 q3 N# _5 V" C, ]
- HTTPClient http;; x, @1 Y. r2 {& F3 M$ q
- Serial.println("[HTTP] begin...");* H4 s; u% A' v+ A( N# x: g
- if (url.startsWith("https")) {
3 r6 Y6 f/ }' n, f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' b8 i+ P/ ?$ O: C8 m$ x6 m% i" S - } else {8 N5 H; {5 W8 H, c6 r. Y
- http.begin(url);% ]. O6 N, @* B b8 R2 V$ g
- }
2 [% ?# r. n' u - Serial.println("[HTTP] GET...");% w- O% U6 T# O9 C
- int httpCode = http.GET();2 ?# v' ?. E8 t
- if (httpCode > 0) {
" a3 g7 X- x) ^: v4 | - Serial.printf("[HTTP] code: %d\n", httpCode);
+ Y$ N/ ~* H M& j( v- v; s - if (httpCode == HTTP_CODE_OK) {) y3 B/ ~7 _* Y* ~8 {
- String payload = http.getString();
5 R' k. e0 Y% {1 H) W" }3 _ - Serial.println(payload);5 |& [0 U3 V7 ^# k
- Serial.print("\r\n");
! m; E) m# L; i! a" Q1 o2 j# H - return payload;# u! G5 R+ g- W' y# h* D, s L7 J, U
- }, @. R* k8 D5 D$ q0 B
- } else {% l6 Z) P2 v- h0 I+ g2 Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" _! Z. ?: j, N' g0 C! X/ H: T0 W - http.errorToString(httpCode).c_str());' ]2 X8 l: C6 ^) C/ _, c% e
- }" U0 D2 i, m( \, a
- http.end();% n$ r! b5 U* v& r; v; V* o3 D c6 k
- return "";' f: K* W5 P4 n# \" T$ {3 F
- }
' j5 K! F7 I; K4 J. v - }/ z2 L) ]: q' ^& W! C; v$ t
- void mainAction() {) y' @1 ]. y. L
- // 发送请求( i- h$ o+ Z7 Y
- doGet("http://google.cn");
# i' t8 r4 l8 H - }1 P f. M6 o0 ]4 k
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