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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)- Z/ @6 y& q: t5 c
- #include <ESP8266HTTPClient.h>1 p" E) p7 n$ F3 W
- #include <ESP8266WiFi.h>1 u5 x, h7 z: X8 ?1 ?) H; E: v
- #include <ESP8266WiFiMulti.h>
7 Z! G7 J! ^8 s( {' X6 N/ a - #include <ESP8266WebServer.h>
; t; v& H9 U$ p& i5 U$ U - #include <arduino.h>
7 N. F3 u) u: ]- Q" g - ESP8266WiFiMulti WiFiMulti;
) W8 r1 m# E( ^- ]( _ - ESP8266WebServer server(80);7 r# R; [* [( u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ }0 f/ \ H- ?3 S, p
- ADC_MODE(ADC_VCC);
- t2 A! z! v$ z - void setup() {
H# R5 j3 S1 Q/ N7 I y8 l3 J% E - Serial.begin(115200);8 z$ a& ?+ N: K$ F3 @+ U
- Serial.print("\r\n\n");
* e% r1 `* F' y9 N1 C4 e - pinMode(2,OUTPUT);
" G" U( I9 F4 P( O, F. V - // WIFI
" o+ a- M* s* z5 P6 {- S - WiFi.mode(WIFI_STA); s4 c3 t: W) ]! W
- WiFi.hostname("Sparkle");
& e) W+ }1 J, @; h" y, m - WiFiMulti.addAP("wifi ssid", "wifi password");
; M8 J- }8 }* \ - int tryNum = 15;/ k& c$ G2 \* W# n. P
- Serial.print("Connect WiFi");& D& A4 @5 g3 P; X' u
- while (WiFiMulti.run() != WL_CONNECTED) {
) S ]4 Q V" U: T2 S - digitalWrite(2,0);9 D( f0 p) @! }7 ]! H- ~" _/ A
- delay(200);
0 H) ^5 o: h& a$ O# o - digitalWrite(2,1);
& t% d# f& l5 ?& V8 B - delay(300);
( g9 D$ u, P2 X5 w/ I" c+ e% P - Serial.print(".");; Y I! |# Z! |4 r8 _4 ^
- tryNum--;- e; E: {: r8 A. m1 x& I) w0 h0 f
- if (tryNum == 0) {
1 i) O! d& C+ ~3 ?: Z3 F2 o3 E - // 1min
) ]/ ^% @' f1 s4 U2 b, n0 n. K - // ESP.deepSleep(60e6);# r2 L* t1 Z. C+ g: W- R* X
- ESP.deepSleep(0);1 C" Q3 h9 e7 M D9 p
- }/ N& ]! h! r4 r* ?$ T" Z; J+ R
- }' ?6 M3 R3 v" k3 |: T
- Serial.print("\r\n");
6 x" H0 j8 @* n E" ~ - digitalWrite(2,1);" r* z. V+ Q. `$ o% `; W
- Serial.print("IP address : ");' ~+ M' w1 y F" Q6 r% i) A
- Serial.println(WiFi.localIP());5 q. K. @5 }: |$ U1 S, Q: w) k2 ?2 \
- server.on("/", HTTP_GET, [](){
, C; C# H4 k ?4 `( C Q9 r1 K/ E. B - server.sendHeader("Connection", "close");1 y' M3 B% {8 N3 Q& E0 l
- server.send(200, "text/html", serverIndex);
9 W, A3 t5 }: R5 ?+ ]8 v - });
% N) _ B# u# N+ { - server.on("/update", HTTP_POST, [](){
$ d2 R2 t; I1 y7 C. G: Z - server.sendHeader("Connection", "close");) E7 i# O$ A, _* R( I- n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ c4 m) t8 J6 J8 q6 W3 b8 D: n - ESP.restart();
( F6 S- L0 w( V - },[](){
}# t1 F, S8 s/ }4 l1 E d - HTTPUpload& upload = server.upload();) F1 X) |+ [( a
- if(upload.status == UPLOAD_FILE_START){* h- [( y5 h5 ^3 Q$ L
- Serial.setDebugOutput(true);6 b# ~1 X# {2 [- I* R( y' h3 j
- Serial.printf("Update: %s\n", upload.filename.c_str());+ l; d4 S* I- r x4 o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# Y6 i$ s3 i* g3 K7 v' t- d; \; j H - if(!Update.begin(maxSketchSpace)){; B0 q6 ^5 J! A$ u( l
- Update.printError(Serial);
, J+ q3 S' }- f+ @7 z - }
8 p& y$ [; d' A5 v - } else if(upload.status == UPLOAD_FILE_WRITE){( j9 D0 \' z$ k
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 Y1 n- t. `. {* T6 @0 { - Update.printError(Serial);$ M' y/ v" o5 S1 n/ I, y
- }; b2 [5 W3 L: Q7 R4 j
- } else if(upload.status == UPLOAD_FILE_END){+ I3 r! W7 F' N' s- k7 t
- if(Update.end(true)){, |- j! i, ?3 [+ d$ }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) t( E' l9 s9 ~/ y m - } else {
3 n$ r7 _; R3 `2 M+ ~ - Update.printError(Serial);9 o- }2 p3 r/ K! u+ P; D8 n$ S
- }
3 k, s. V$ B) K/ {0 ^ F+ F - Serial.setDebugOutput(false);
' I& F. f' B9 l" V, b - }
3 |0 U+ T. a$ l8 v; C - yield();
. d. R3 n! A, S$ z% q - });7 z* x, }8 u6 `9 ^( c6 r
- 8 P% }7 X! \& ^+ B8 [
- digitalWrite(2,0);
* j# }: Q# s C+ T, D - mainAction();6 ~+ ^/ ], H7 O, O% ~! F7 J
- if (digitalRead(0)){6 [6 b- c8 l1 |, ~0 ]5 n( W
- ESP.deepSleep(0);1 v1 I6 B# X/ x3 x
- } else {8 P8 S# i* S4 R" U- p) Y3 P+ `) ~
- server.begin();* e R. H# j4 [1 X( ?) b- g& F
- }: P4 ]1 C$ i5 |- @! A. o
- }
, ^6 A7 t- R3 j! A - void loop() {
! B, |2 b- j8 U7 u* S% W" e7 Q - server.handleClient();* j* a. B; v5 Z6 m$ n8 M* x' R2 v
- delay(1);/ [( ?( _2 q: Z8 n; C ~9 H
- }% n2 z0 R# ^1 d+ {7 B, l1 n& g
- String doGet(String url){
* G8 Y7 n) Y- j2 c" c" X. E% o - if ((WiFiMulti.run() == WL_CONNECTED)) {; j+ f5 o: K5 Q! `6 c" u
- HTTPClient http;
$ a5 R* g; `( x9 } `) z5 p" B, r - Serial.println("[HTTP] begin...");- F: }6 v7 ~( K+ Z8 h
- if (url.startsWith("https")) {
4 T: R, X/ o, r3 _' _8 |! H3 l* l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 y8 \& p' z; @0 X5 I
- } else {( u) _. J" {& x
- http.begin(url);
0 i; v: X; v% f0 Q) K - }: Z" X! @! T/ X
- Serial.println("[HTTP] GET...");5 j+ w" d% j7 c. k9 l* b* y8 q- h
- int httpCode = http.GET();
* F% @$ O! u" h: h6 Q - if (httpCode > 0) {
' y, }, b0 P: k) W7 s" p! W6 N8 @ - Serial.printf("[HTTP] code: %d\n", httpCode);8 g# K: e; e! \5 ^( U7 q1 |
- if (httpCode == HTTP_CODE_OK) {0 a7 x' O+ q* C3 X5 z: u
- String payload = http.getString();5 j2 {. |8 g% \' J" h6 q: j
- Serial.println(payload);' H5 k/ G2 m" R! ?/ K& N
- Serial.print("\r\n");2 M5 x# P$ N) y0 o2 L
- return payload;4 {0 N- i* {) E; R }
- }2 W) r( b* m. ]" A- k2 k/ W
- } else {
N& D8 d) S0 Y! Z/ p7 o* p - Serial.printf("[HTTP] GET... failed, error: %s\n",
/ d. o) V; F3 e9 _ Q K" `) z - http.errorToString(httpCode).c_str());
3 @4 f' C: G# H( \6 Y# _ - }% r8 O( d1 w% n2 X
- http.end();
/ D1 A0 ] [- c# `, W - return "";7 W1 r* F8 e; H7 \2 w: C
- }
6 w! s$ p9 ^8 Z, z3 M - }1 E( }2 [! p. R# b5 M2 ~' Z
- void mainAction() {( X8 _/ S9 Z+ n, \5 `, J
- // 发送请求: y; M5 W/ n1 |9 _
- doGet("http://google.cn");& O/ k- `4 V7 z9 m0 ^9 D* T
- }
8 c: i9 _- j, b& y4 z9 d6 T* R
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