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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)2 a+ L5 j- j6 l9 _6 z
- #include <ESP8266HTTPClient.h>+ s( z: q: V( ~6 U0 r
- #include <ESP8266WiFi.h>
9 U7 {) ~9 U# ] - #include <ESP8266WiFiMulti.h>
6 V2 ?# j0 y0 {* {: F - #include <ESP8266WebServer.h>
: E8 a$ ^ c: D9 @- t4 A - #include <arduino.h>. v% j0 q2 ~: A' ]
- ESP8266WiFiMulti WiFiMulti;
. E P: U3 m! q7 r( ^+ _' N - ESP8266WebServer server(80);
& t% N x" |& t3 V% P6 d @ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ l' ]3 w3 [9 u - ADC_MODE(ADC_VCC);
2 J N; o. k+ J7 K - void setup() {
1 ?. G% ~# w! m# ^- R1 \* V Z - Serial.begin(115200);$ w `( n7 L' w( q$ q- P/ \- U
- Serial.print("\r\n\n");+ `$ h& V0 m% f# S0 w" I
- pinMode(2,OUTPUT);
; D; `8 V: N3 H% U* F$ h G' C; g - // WIFI
0 j+ Z6 `2 U! `" O5 s. Q, r$ E - WiFi.mode(WIFI_STA);
c! o, f6 y& l - WiFi.hostname("Sparkle");
" v4 v ~2 \/ F4 k' w - WiFiMulti.addAP("wifi ssid", "wifi password");
: w6 L/ _+ P5 P# \ - int tryNum = 15;: e& s7 M2 o* b
- Serial.print("Connect WiFi");
! s; U4 Z( U2 t, ]: _ - while (WiFiMulti.run() != WL_CONNECTED) {, L& B! f6 W4 _
- digitalWrite(2,0);3 r! D. _; q' e$ ?4 l0 r
- delay(200);4 l* v7 ]) T7 q0 z3 t, c
- digitalWrite(2,1);
5 m) _; P. [$ g# q# ?( i - delay(300);: A0 y3 }0 e' R* U" z
- Serial.print(".");
0 e( Z+ e" P5 S: T/ u+ s - tryNum--;. Z# E' l$ |, `0 N0 H
- if (tryNum == 0) {
- z( ?# c: Y7 f) l6 l& u - // 1min
$ I/ L( J% n- F7 J0 m - // ESP.deepSleep(60e6);3 f* V" [1 Z8 c
- ESP.deepSleep(0);. d- G3 ~! X3 I% H. c. F+ f: A
- }
/ C; B1 i& o7 k - }
2 x/ x8 _2 L( l! w - Serial.print("\r\n");2 h* q m3 I8 k) p& h
- digitalWrite(2,1);
5 J$ ~# j0 G: f, E& u - Serial.print("IP address : ");- K7 d$ ]( N9 N4 w3 n6 n
- Serial.println(WiFi.localIP());
. a2 \! h$ ~% \# ^! r - server.on("/", HTTP_GET, [](){+ V( s9 Z1 e$ l) @
- server.sendHeader("Connection", "close");
7 d7 F# ^- o: J: X( F - server.send(200, "text/html", serverIndex);
5 k2 R+ s1 O5 ?' g { - });
& n) n1 I9 T; G, R/ Y# n - server.on("/update", HTTP_POST, [](){ J* H; [3 k# b% w
- server.sendHeader("Connection", "close");0 G6 t, f2 N+ ?- H1 r
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 W6 {1 [5 r/ a q- \5 e! p! } - ESP.restart();! u& Y1 u7 r8 b9 I0 X0 U
- },[](){& G- P8 v! w' a( {
- HTTPUpload& upload = server.upload();
! f' n* p) `7 `4 V/ h# k( u% | - if(upload.status == UPLOAD_FILE_START){
7 j* b" |. {1 D; }5 i7 o) e2 D3 l - Serial.setDebugOutput(true); _2 z. q* d0 ]* Q8 c
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 R y3 Z3 H' h/ i4 J/ F' ` - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 c: u9 E" e4 `5 M
- if(!Update.begin(maxSketchSpace)){
& G$ k4 D3 C' [ - Update.printError(Serial);
- I9 |, h" _, f" k3 h2 ] - }; B R4 P4 H0 Y
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 ^3 y7 c* C8 ?. G) P - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 Q* T) t" }" c& ?% n( b% f+ J% ?4 ?: N
- Update.printError(Serial);
2 I! P9 z, p$ h3 s, G - }9 w3 t' N5 G) R6 ~- T* ~
- } else if(upload.status == UPLOAD_FILE_END){) X2 M3 b/ v( B( N2 j* G' T( p1 j; }
- if(Update.end(true)){" J- m { b! C1 y6 \; c
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# @2 ]8 |% C$ a3 {* R4 X7 f - } else {8 j7 a/ V" t. [
- Update.printError(Serial);, v( b7 n$ k% `8 G
- }( M6 D% P1 U$ s) a( [& @
- Serial.setDebugOutput(false);
% C3 O5 R4 J% a2 \' f - }) i) R) j5 E/ R& x& g p4 \( A
- yield();) o8 z$ g% d7 W9 O( ?: S2 @7 I& g( q
- });9 \$ _8 l3 p& k; Q9 r% B: K: ?
-
) C5 l" R% _2 R- S6 t! s - digitalWrite(2,0);0 C/ \ @7 d8 ?$ h3 d i9 V4 O
- mainAction();+ j8 K+ @* L6 G- A: W
- if (digitalRead(0)){
- p2 e1 B% j+ b* g7 f4 z! _$ ~ - ESP.deepSleep(0);
) t$ y& w u ] s( T - } else {3 v# a2 r) e5 T" L' p1 ?$ g/ Y" M
- server.begin();
1 \' D; x' z9 s/ p; n - }$ u* A- k2 J/ _3 C/ K& g8 j/ J# N ~
- }5 {/ S; K8 z1 S9 m# |
- void loop() {+ E+ X; a# a7 e8 \8 Q U$ e
- server.handleClient();/ Q6 A" R, B4 A0 I. q
- delay(1);% T S* c! O `: r
- }6 O" Q" P3 ~9 \* F
- String doGet(String url){. @8 V9 m! ]$ e
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) w* m; |: j! }* V" l' S - HTTPClient http;
2 T& ]: a3 ?; u+ N8 M C% n - Serial.println("[HTTP] begin...");: `6 L9 F+ ^2 _8 I
- if (url.startsWith("https")) {
3 V, R+ G+ x' e( w1 v7 q+ h: m+ x3 W0 [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( f! ?$ ^; ~$ R D* d% H
- } else {
& }& ~% e2 _0 |+ S# Z2 ~" W; \ - http.begin(url);( y: R& E" o: A2 k
- }) n/ d1 M$ X+ Y% @9 R5 ~
- Serial.println("[HTTP] GET...");
( z! P% G ?1 j8 j" G - int httpCode = http.GET();% B6 Y# `) }+ q6 x9 U! J
- if (httpCode > 0) {
* N9 }% \) x" ?6 }3 ~/ k" y& t - Serial.printf("[HTTP] code: %d\n", httpCode);
! N( A: N7 u' j( I" b# C - if (httpCode == HTTP_CODE_OK) {; A. x% I' ?2 [ [
- String payload = http.getString();
& q' T B# P7 Z' S- v9 l! q - Serial.println(payload);, O: K: l$ b- q4 h' _1 Y! B
- Serial.print("\r\n");
2 S8 m0 e) x1 I4 E% T& B& D3 S - return payload;% j3 {6 r# Q9 K1 _3 t$ [# I
- }
1 a; Y, ?5 F) Y9 T! h - } else {: Y o! s* s* e* X. n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
/ I! k% s3 A" J& y3 D, m - http.errorToString(httpCode).c_str());
+ }' K6 a1 W% r- I6 M8 a - }4 [. G/ z7 x. z3 U$ c
- http.end();8 r& `+ R% }2 C5 J) A6 [$ D, K
- return "";
2 t7 D* y1 X* ] - }! ~' y: p3 h9 \. F3 b
- }
- S! T$ {* y# A8 Z" d' ]) b4 A, ^0 s - void mainAction() {* B! E2 _3 L! ]0 w3 h6 Q+ X
- // 发送请求. M% B5 o A1 R6 S5 I( l: q3 o) y3 m6 R. b
- doGet("http://google.cn"); }, j- O; m" p r
- }) S/ I) W' P' `# a% R+ {: Y. ^
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