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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)
% @+ c9 g4 d- o& A. b- #include <ESP8266HTTPClient.h>; n& F/ |( g/ Z9 v( \
- #include <ESP8266WiFi.h>5 S( F3 V! k2 n5 H
- #include <ESP8266WiFiMulti.h>2 W2 z6 s2 ^/ g$ ?+ Q5 i( s0 I7 r
- #include <ESP8266WebServer.h>
7 L# x+ {1 }$ t- q2 N1 g m' K - #include <arduino.h># l* I2 S3 |- _/ y& h
- ESP8266WiFiMulti WiFiMulti;( d0 q- W; q* O! e" r
- ESP8266WebServer server(80);; {: W3 p& {0 h, O8 h7 z, T! ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* ^6 t' }% w0 o9 z5 Z9 y. Q
- ADC_MODE(ADC_VCC);
, C4 h2 P9 m- L# R- c, r/ K" x - void setup() {
! y, I1 ~; o3 g+ l - Serial.begin(115200);
2 E9 r& `9 a! q H+ `3 T - Serial.print("\r\n\n");$ N) K: L% H& ]4 A: S) @$ h
- pinMode(2,OUTPUT);; o- w6 A8 j! {7 P P
- // WIFI9 ]2 ^# w9 |& E" @8 G1 f6 u9 O% O
- WiFi.mode(WIFI_STA);
/ S# q0 j/ J, t& m$ P# b' l - WiFi.hostname("Sparkle");1 M% ^1 _. G+ d9 `# e4 P
- WiFiMulti.addAP("wifi ssid", "wifi password");6 v. b7 ?! t0 {4 z7 Q/ ]
- int tryNum = 15; ~" \ A+ r' U8 a% h. {
- Serial.print("Connect WiFi");
; f5 V$ ~3 R7 B! ~- ^ - while (WiFiMulti.run() != WL_CONNECTED) {- O# U# M' V6 b* P0 z
- digitalWrite(2,0);- u* n- L6 T2 m6 W7 F
- delay(200);
) v0 i# t% W, R/ ]9 T9 W - digitalWrite(2,1);
1 y( h6 m- V" F; \) Y/ a- u - delay(300);8 S4 C3 I$ o7 v. |' B$ j
- Serial.print(".");
: @% G0 `' Z' J( }' N1 S - tryNum--;& N9 L9 [1 Y) g; L9 M7 X6 a2 J
- if (tryNum == 0) {
3 H$ ~/ u x: H5 l; @; A9 l9 Z - // 1min
5 ?6 U' |2 d/ o; D - // ESP.deepSleep(60e6);
' t! D6 T" I' ^( a - ESP.deepSleep(0);
9 g' M, ^4 h0 q4 w - }( T/ `! _ L1 g6 I# L1 W
- }
* B( Y8 q/ N0 w - Serial.print("\r\n");
* }" r/ x# |5 B - digitalWrite(2,1);
* ]0 L9 r# i: q2 l/ u: A2 r - Serial.print("IP address : ");
+ y) {9 l' S& [9 n& y - Serial.println(WiFi.localIP());2 y% A. s) ~: r& `+ N) M/ B
- server.on("/", HTTP_GET, [](){
8 v* n1 E3 z/ S7 y - server.sendHeader("Connection", "close");
* o4 z; z' G7 I A9 {( x* m Z - server.send(200, "text/html", serverIndex);5 V1 w! S9 b( L$ b% s, ~8 B
- });1 S* G5 c+ n0 J- @" D, m) Q' E
- server.on("/update", HTTP_POST, [](){& {8 y+ ?* S# M1 Y" X6 V+ w" _
- server.sendHeader("Connection", "close");
3 Y2 m- o0 x) [$ b2 e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: m/ x4 K/ Q2 P$ N - ESP.restart();* ]1 l/ f) F. H
- },[](){
8 J5 f( S' {3 S6 G - HTTPUpload& upload = server.upload();
9 M9 a0 M2 P% i - if(upload.status == UPLOAD_FILE_START){$ _! a+ w4 v2 R- Q O7 @4 c* Y- |
- Serial.setDebugOutput(true);
5 B( u- y' J* f" G' Z8 O% ~# r - Serial.printf("Update: %s\n", upload.filename.c_str());; l. d2 B" A. k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; E! N/ K8 V' L1 C5 j1 V
- if(!Update.begin(maxSketchSpace)){ a1 ^6 M9 ]2 f8 ^; [3 ^
- Update.printError(Serial);) z% A! r" E" f3 ~9 Z3 |9 f# k
- }
/ m" x9 q: U- `+ s - } else if(upload.status == UPLOAD_FILE_WRITE){
7 [9 ~ m+ i/ k1 {# }% \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, ]" f5 i3 A, D1 o) V$ q9 g
- Update.printError(Serial);
y5 p* K. N9 _/ U' H' h2 i - }" |& Z. f' k U. W3 r5 p
- } else if(upload.status == UPLOAD_FILE_END){
" V4 {0 M4 k& H5 H - if(Update.end(true)){
% L7 \! q* M+ H$ }% O - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 C! ?, {& }; q" x9 E1 z) [ - } else {
" { h+ V2 ?. j* s! [6 z - Update.printError(Serial);
6 P) }' ~( }$ s3 w7 Z: U - }
" M7 q1 c3 o; A+ m( V% m - Serial.setDebugOutput(false);; S' w+ n5 x/ Y, f* k
- }
8 H& P+ l9 u% Q2 f' z5 ] - yield();
6 ~: h0 O3 e4 R* ?; U - });2 I9 N; [/ N' H8 x L+ h$ i( P3 E
-
, L. i) S3 h6 I$ y+ s - digitalWrite(2,0);
$ @7 b0 q% M! b9 n: J. n) m R - mainAction();
$ S1 K2 R. T$ } - if (digitalRead(0)){7 f" P' u3 ?( }, u# V
- ESP.deepSleep(0);
- e' m' g# A! w2 R. ^, O# g - } else {
1 i1 g9 ~+ u0 D3 j1 O& m2 Y3 y- ~ - server.begin();
5 h6 ~6 a- ] C5 D. C8 e* e - }' F# U3 ~7 A% ^, _9 P
- }% ?+ H- Y; l Y
- void loop() { P1 _& F3 X6 X" z
- server.handleClient();
% ^7 K5 h! H6 \" h - delay(1);4 g" Y% c! S+ O# ]; @/ s
- }- M; ^. H$ \4 Q% ?+ @7 N
- String doGet(String url){
. B8 I5 z! y9 z6 v* q5 ? - if ((WiFiMulti.run() == WL_CONNECTED)) {2 j) i6 U$ O Q4 g) P; {
- HTTPClient http;
0 Q. |) c/ | X - Serial.println("[HTTP] begin...");
0 F. M! \5 J2 o/ A$ T+ ^ - if (url.startsWith("https")) {
& i9 c: G, \$ O j/ S - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% S/ ?/ _; K- ^! l$ A
- } else {
. l, f4 \% B3 M2 f7 d, q& o# V; U - http.begin(url);
/ _1 Q" p$ k. I" W0 N8 W - }! u C, G4 V$ g! D F
- Serial.println("[HTTP] GET...");( s {1 Y" V) b
- int httpCode = http.GET();
8 ?4 C H: z& U - if (httpCode > 0) {
% |- V% ~- f5 |4 s - Serial.printf("[HTTP] code: %d\n", httpCode);
; T- I6 T* G' ~9 m' a ~. S5 P - if (httpCode == HTTP_CODE_OK) {$ {7 A- V6 y' i+ c
- String payload = http.getString();- V# d9 w& r' I& b1 D/ K8 x) N
- Serial.println(payload);4 Q5 ?0 J5 v6 o) [+ [. F/ ^/ _
- Serial.print("\r\n");
+ y6 d1 R4 k3 E: e - return payload;9 i8 `- ?9 F% U% b1 @" K5 G7 F
- }4 ~) b1 B: F8 \2 n$ G& v. O
- } else {; \& I0 m" s! A \1 i. v
- Serial.printf("[HTTP] GET... failed, error: %s\n",0 ]1 P) o) ?+ \0 C% x6 X0 h+ `. i
- http.errorToString(httpCode).c_str()); V) T0 m' v$ t5 p5 Z" d
- }
9 i2 o! y3 W- Z - http.end();
' | Z; r% |+ {. A' I8 V4 E2 |0 M - return "";
" P b( P k* E$ H5 \' | - }
1 L3 a, Z* w* y/ ^ - }: G' ]0 J% V4 \, h7 y: R3 N
- void mainAction() {; w$ T8 q% `+ o/ Q$ J* t2 [
- // 发送请求2 B1 C) L# @7 @' K+ I
- doGet("http://google.cn"); C6 c! f0 n! t; H* T+ ~
- }- i l1 [4 Y' Y1 f1 ~9 ]
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