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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)
# ]: Q( a' }. E6 C0 }! N- w- #include <ESP8266HTTPClient.h>6 ~$ Z4 {- v( Q6 v/ P4 T% {
- #include <ESP8266WiFi.h>
( K2 j. J1 U. z5 {1 f" m% X - #include <ESP8266WiFiMulti.h>4 X5 z1 V P; ?( R/ s: P( Y1 \
- #include <ESP8266WebServer.h>: s& h3 m" X- B# ^( P
- #include <arduino.h>
6 p. c) O u) }3 m" Z# X& u - ESP8266WiFiMulti WiFiMulti;+ ]7 Z# k7 V$ j& \% H2 U
- ESP8266WebServer server(80);- [7 ~" V7 t# e. L, k; D, K6 \2 u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( L* R: t" }9 H, V
- ADC_MODE(ADC_VCC);+ l2 ^8 ?, W2 L& p/ P) a, I1 U
- void setup() {% c$ |* S2 Z; g
- Serial.begin(115200);+ v# s. ]7 F0 C2 E; U# E+ }3 M
- Serial.print("\r\n\n");
' N: Y5 p4 G% j8 n3 g" g- e - pinMode(2,OUTPUT);
6 o! _4 d* V; \: C' ? - // WIFI
9 K+ L: y* j m! |5 Z! ^' f - WiFi.mode(WIFI_STA);+ j! z% s5 G9 S( I) X
- WiFi.hostname("Sparkle");
9 M! K! e1 F4 o1 [( ]/ N) @ - WiFiMulti.addAP("wifi ssid", "wifi password");8 m" M# v3 I6 a2 X. V
- int tryNum = 15;
/ C& V+ s4 H% E1 p - Serial.print("Connect WiFi");
+ g: d- T. I6 B& B: O* L0 z - while (WiFiMulti.run() != WL_CONNECTED) {( f5 [/ l/ {: ?$ X8 z/ t
- digitalWrite(2,0);
* g% e) n; K( m, G9 w w8 m; l5 h - delay(200);2 _5 f( Z5 s2 B
- digitalWrite(2,1);, I. x5 `$ a& M* T! g' m
- delay(300);) d/ {2 _$ Q& \& E2 A
- Serial.print(".");
' c( k5 h [: c - tryNum--;
_# n* X! ^7 e - if (tryNum == 0) {
S/ J1 d. {# X" B, N - // 1min4 P& q% Z) b. _& ^$ z4 [4 A
- // ESP.deepSleep(60e6);0 a. G* [# J2 h& n3 |. H, L. W
- ESP.deepSleep(0);/ p1 o* [( k8 U7 D0 f' p! i
- }
2 ]$ r! L; C& ]4 B. s8 i - }. Q- V, E$ ?% D, {3 Z6 D, F5 h
- Serial.print("\r\n");
5 t2 z6 w6 t9 t# ^ - digitalWrite(2,1);
0 O" S8 T q0 w# g4 N4 n - Serial.print("IP address : ");9 ?6 g) T. K7 S/ C" ^
- Serial.println(WiFi.localIP());2 z4 Y) s1 ^+ X: E; Z/ X
- server.on("/", HTTP_GET, [](){
% T b7 U3 ^4 g, x* Q/ V( Z - server.sendHeader("Connection", "close");
, a* g% _& J$ A2 J$ N - server.send(200, "text/html", serverIndex);- Q4 `( ]0 T4 z/ `) ?# j, f* d7 Z
- });1 A6 A; I; }* S: p9 R: t
- server.on("/update", HTTP_POST, [](){
( W( g# y* n3 U) s N1 }: s) f - server.sendHeader("Connection", "close");
8 j; _& _/ ?3 `! J. e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ _( S& W9 @- Z3 p1 v. h
- ESP.restart();
1 W. w; @/ G' X - },[](){8 A: F2 s" U r- E0 _
- HTTPUpload& upload = server.upload();
+ E; z% f1 G5 b$ Q+ t6 g - if(upload.status == UPLOAD_FILE_START){; I: `. f. J" C- L8 j. Z$ n$ }
- Serial.setDebugOutput(true);
& g; {. J2 Q5 e- x( i - Serial.printf("Update: %s\n", upload.filename.c_str());& Q' b: y" q, O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ a3 X8 J9 G; n! m; Z7 j2 q
- if(!Update.begin(maxSketchSpace)){
, n# |* d: Z3 v( p9 j - Update.printError(Serial);2 I9 X" W' k) {1 J3 e# n
- }; D' w& n# n# O; ^& J O3 ]1 P
- } else if(upload.status == UPLOAD_FILE_WRITE){8 L3 L6 I- a! x# Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 ?% N9 u9 A8 x- g1 t& t5 D! ? - Update.printError(Serial);4 G7 R8 }/ i% \
- }
6 X9 p6 p' q0 T3 e3 p& x - } else if(upload.status == UPLOAD_FILE_END){" m' ? p6 n- M2 v( T1 Y+ d0 }
- if(Update.end(true)){6 k1 w9 S& d& ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& m+ k9 x$ S) k
- } else {, n- A: J* g' o: c3 W4 J
- Update.printError(Serial);% v; O& k5 U+ g0 L6 x m
- }2 ?$ J7 d2 y' h
- Serial.setDebugOutput(false);0 J6 Q' [" m" ~/ X
- }5 z2 @& e3 |( C0 [9 u
- yield();$ A9 z; Y/ H( b! S' c% F
- });
3 @* \( } X/ W - ; D3 W0 Z3 N+ Q6 U6 u3 u
- digitalWrite(2,0);/ Z3 E- r# r; ^0 _( ]; y
- mainAction();
0 Z% ]# I5 O A" F - if (digitalRead(0)){
" S7 ^! y k& ~8 K - ESP.deepSleep(0);" [+ @* d2 D- y3 Y
- } else {
% s* Z" I7 _1 S. _! ~ - server.begin();% d0 r& |/ j1 v5 K! v) J
- }
E2 e8 W4 [' I+ ^ - }$ E5 m2 ]: o: a6 s9 O
- void loop() {8 x* r) d: B5 Q. x
- server.handleClient();
4 t2 t0 n. |2 h- o: b - delay(1);
# V+ f! ]; v/ B1 c4 m - }
~. R; P9 w, U( X: X# p" h* E - String doGet(String url){
& n& d' _/ G, r9 s9 X - if ((WiFiMulti.run() == WL_CONNECTED)) {# v& ]; T3 j3 [% l" A
- HTTPClient http;5 s+ U+ v& J( f/ m
- Serial.println("[HTTP] begin...");
- {% a- H# a7 t5 L0 K - if (url.startsWith("https")) {2 i% J8 T0 u; w* }7 H Y2 n* q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ L6 `; G2 h: D& U8 [7 v
- } else {
+ \# T* c- O( r: H% H1 E2 L7 F" t - http.begin(url);. s2 g2 K. v# G+ O8 M+ Q ^
- }! s: `( H* H9 G. r: @ _
- Serial.println("[HTTP] GET...");
c+ p ?0 s0 M2 z9 U* g9 H - int httpCode = http.GET();, t. h# i) B- J) z
- if (httpCode > 0) {
7 C. u( ^/ |. ^ } }$ q( T - Serial.printf("[HTTP] code: %d\n", httpCode);
6 g5 @: d$ d- R+ {/ V' h. O1 \ - if (httpCode == HTTP_CODE_OK) {
X- S! R5 K) E4 a2 }- F/ c - String payload = http.getString();4 y5 i, r& c& v3 O. c
- Serial.println(payload);: L8 @7 }3 c7 m
- Serial.print("\r\n");
* V* Q1 A% E# h3 p3 r7 _* [ - return payload;
, u# f8 s6 H3 q7 r - }
]3 q& F' e. Q - } else {
3 D+ y$ Q7 x0 E; i0 } - Serial.printf("[HTTP] GET... failed, error: %s\n",, K3 M) t! [5 W0 q; t/ m
- http.errorToString(httpCode).c_str());
& m4 _* m$ A5 `7 N. S* N- d V - }
( _1 k* B) \+ ], L& V; T/ S: V - http.end(); f0 k4 W) z; o/ m
- return "";7 z8 y' e6 x' J1 Y1 s0 e
- }
- f5 n6 O- Z5 @9 }, L: S9 F - }
( B% B) W1 p+ s8 ^/ t% J - void mainAction() {
4 Z. y: o! \+ l. M2 s - // 发送请求
% x+ ~' n1 T$ Q: s9 ~ - doGet("http://google.cn");
: O1 V* \6 K0 a. _) B" Y9 F - }3 C m1 g( z: X4 r. r7 K
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